The heat required to change 1 gram of a solid at its normal melting point.

Answers

Answer 1

By definition, the heat required to change 1 gram of a solid at its normal melting point is called heat of fusion.

Latent heat is defined as the energy required by a quantity of substance to change state.

When this change consists of changing from a solid to a liquid phase, it is called heat of fusion and when the change occurs from a liquid to a gaseous state, it is called heat of vaporization.

Fusion is the process by which a solid becomes a liquid phase. In this case, the temperature remains constant throughout the time that the solid turns into a liquid.

This occurs because in the solid phase the molecules are held together forming a rigid crystalline structure, in such a way that the substance has a defined shape and volume. As heat is supplied, the energies of the solid's particles gradually increase. After a certain time, this energy becomes so great that some of the particles exceed the force that kept them in their fixed positions.

In this way, the greatest separation between the particles is associated with the liquid phase.

Thus, the energy absorbed by the substance is used to separate the molecules more than in the solid phase, so that the temperature does not increase during the change of state.

In summary, it is called "heat of fusion", the energy required to change 1 gram of substance from a solid state to a liquid state, without changing its temperature.

In others words, the heat required to change 1 gram of a solid at its normal melting point is called heat of fusion.

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Related Questions

The weight of a cart with a mass of 150 kg is how many newtons.

Answers

Answer:

1500 N

Explanation:

Weight = mg = 150 kg * 10 m/s^2

Weight = 1500 N

A global resources company uses data-intensive, cloud-based simulation software, but users in remote locations find that the responsiveness is poor due to the amount of data being transferred to and from the cloud. In response, the company decides to deploy multiple instances of the application in locations closer to the end users.

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There are several advances in technology. The type of technology is illustrated in this example  is called Edge computing.

Edge computing is known as a form of distributed computing  that serves computation and data storage closer to data source.

It is known as the act of holding, storing, processing and analyzing data near the client.

This form of computing draws closer the processing and storage of data  to the equipment.

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A global resources company uses data-intensive, cloud-based simulation software, but users in remote locations find that the responsiveness is poor due to the amount of data being transferred to and from the cloud. In response, the company decides to deploy multiple instances of the application in locations closer to the end users.

which type of technology is illustrated in this example?

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Neglecting the effect of air resistance a stone dropped off a 175-m high building lands on the ground in:.

Answers

Here's li[tex]^{}[/tex]nk to the answer:

bit.[tex]^{}[/tex]ly/3fcEdSx

Which of the following will be the ratio of the perimeter of the blue triangle to the red triangle.

Answers

The ratio (red to blue) of the perimeters of the similar triangles is 12:7

Assuming that the similar triangles are equilateral triangles, then all their sides will be equal.

Perimeter of a triangle = s1 + s2 + s3

For the red triangle;

Perimeter of the red triangle = 12 + 12 + 12

Perimeter of the red triangle = 36

For the blue triangle:

Perimeter of the blue triangle = 7 + 7 + 7

Perimeter of the blue triangle = 21

Taking the ratio of their perimeters;

Ratio of red to blue = 36:21 = 12:7

Hence the ratio (red to blue) of the perimeters of the similar triangles is 12:7

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Find the value of 6.

Answers

Answer:

B if your question is same as mine

Explanation:

the definition of ! ( factorial ) is

n! = n(n - 1)(n - 2) ........ × 3 × 2 × 1

6 = 6 × 5 × 4 × 3 × 2 × 1 = 720

BRAINLIEST

Write an outline the chosen reading text using your preferred format brainly.

Answers

I'll write a essay.

    What is black? You may have already got an answer, but keep reading because your answer could also be incorrect. You might have the correct solution, but it might not be exactly right so you ought to take your time and keep reading this thoroughly.

    You might think black is just defined as a color, but it isn't, just not the right properties to be defined as just a color. The definition of black goes deeper. Black isn't exactly defined as a color because it's the whole absence of light and shine, and also, color. Within the visible art world, black and white, sometimes are usually defined as distinct colors. This is different from the scenario of spectral colors in physics.

    Black is really a color which ends up from missing or complete absorption of all visible/invisible light. It's a neutral color, without hue, like white and gray. It's often used symbolically or figuratively to represent darkness of the very darkest color because of the absence of or complete absorption of light; the other of white.

    Well black represents darkness, evil, despair, and also the night/the abyss. It is the color accustomed to convey specifically/certain and jurisdiction, and when used because the opposite as white, it is a symbol of the eternal struggle between day and night, well-being and evil/hatred, and right and crime/wrong.

    So in conclusion, black represents darkness, evil, and despair, it is a symbol of the eternal struggle between day and night, well-being and evil, between right and wrong. It is the color accustomed to convey specifically/certain and jurisdiction, and it is also the opposite of white. It is not just a color, it's more known as a distant color because it is without light and hue.

A __________ is a group of words containing a subject and a predicate, but is not a sentence on its own. Phrase independent clause subordinate clause compound sentence.

Answers

Answer:

A subordinate clause is a group of words containing a subject and a predicate but is not a sentence on its own.

Explanation:

Ex:

after I ate lunch

because I am short

What is the acceleration of a 32 kg object if a 6. 75 n force is applied to it? 0. 21 m/s2 4. 74 m/s2 21. 09 m/s2 216. 00 m/s2.

Answers

The acceleration of the object is 4.74 m/s²

From the question given above, the following data were obtained:

Mass (m) = 32 Kg

Force (F) = 6.75 N

Acceleration (a) =?

The acceleration of the object can be obtained as follow:

[tex]a = \frac{f}{m} \\ \\ a \: = \frac{32}{6.75} \\ \\ [/tex]

a = 4.74 m/s²

Therefore, the acceleration of the object is 4.74 m/s²

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9. ¿Qué quiere decir Yanez cuando
dice que es de cáscara amarga"?
Ayuda please

Answers

Es muy probable que Yañez se haya referido a una persona amargada, de temperamento difícil y ocasionalmente atravesado.

El vocablo "ser de la cáscara amarga" es un término despectivo para referirse a personas amargadas, de temperamento difícil y ocasionalmente atravesado, el cual ha sido el significado más difundido.

Históricamente, ha cambiado de sentido durante varios siglos, en el siglo XVIII se empleaba para referirse a personas pendencieras y traviesas, en el siglo XIX por conservadores para referirse despectivamente de liberales y socialistas y en el siglo XX por socialistas para denominar despectivamente a conservadores y reaccionarios.

En síntesis, es muy probable que Yañez se haya referido a una persona amargada, de temperamento difícil y ocasionalmente atravesado.

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Which sentences include a proper mla parenthetical citation? check all that apply.

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Considering the available options, the sentences that include a proper MLA parenthetical citation include "Mahoney states that "the needs of speakers drive language change" (nsf.gov)."

What is MLA parenthetical citation?

MLA parenthetical citation is the citation method that utilizes the author's last name, the page number, or other relevant source information in parentheses from sentences used.

Other sentences that include a proper MLA parenthetical citation include the following:

Johnson claims that the English language began to deviate from its Germanic origins (4).

In the eighteenth century, English was "departing from its original Teutonic character"(Johnson 4).

Hence, in this case, it is concluded that the correct answer is options A, E, and F.

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What are the differences between the sat and act.

Answers

Answer:

The SAT is the longer of the two tests at three hours without the essay, and three hours and 50 minutes with the essay. The ACT is three hours and 35 minutes with the writing section, and three hours without it. The lengths of each sections vary between the two tests, which can be seen below.

Successful entrepreneurs contribute to the economy by.

Answers

Answer:

B. Expanding markets.

Explanation:

Successful entrepreneurs contribute to the economy by expanding markets. The correct option is b.

What is an entrepreneur?

Entrepreneurs are businesspeople that operate on a large scale by taking an original idea and turning it into reality by improving the lives of ordinary people through their goods or services.

A successful entrepreneur has the power to transform the world by reshaping the economy and developing novel goods, services, and market niches.

By opening up new markets, entrepreneurs help individuals become more prosperous and gain jobs because doing so creates a variety of opportunities for them. By seizing these chances, anyone can become wealthy and earn a living without relying on an entrepreneur.

Therefore, the correct option is b, expanding markets.

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The question is incomplete. Your most probably complete question is given below:

becoming wealthy.

expanding markets.

encouraging free trade.

creating business strategies.

Which description from "sugihara" best indicates that several hours have passed?.

Answers

Answer:

its A

Explanation:

hope this helps, pls lmk if its wrong

Disagreements over the proper role of government led to: Question 10 options: more taxes The Espionage Act The First Political Parties More government jobs

Answers

Answer:

I think its The Espionage Act but im not sure.

Disagreements over the proper role of government led to: C. The First Political Parties.

A government can be defined as a body of leadership, agency and procedures for enforcing policies, laws, rules and regulations in a particular country.

Some of the roles of government in a society include:

Formulation of policies.Enactment of laws.Establishment of public infrastructures.Taxation of both private and public institutions.

In the United States of America, there were disagreements between the people over what is considered the proper role of government.

Consequently, this led to the formation of the first political parties in the United States of America, which were:

I. The Federalist Party.

II. The Democratic-Republican Party (Anti-Federalists).

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You get lost in extremely cold weather. You are unable to start a fire. Which of the following is the best way to survive?.

Answers

Answer:

go back in time and dont go anywhere cold

Explanation:

The discussion of the ""greatest of poets and philosophers"" in the third paragraph suggests that the author believes the audience of the speech will.

Answers

There a lot of great poets and philosophers in the world today. The author believes the audience of the speech will recognize an implicit reference to Shakespeare and agree about his importance.

There have been a lot of English literature. One of the greatest poet of all time is William Shakespeare.

He was known for his famous quote where He said that All the world, is a stage, and all the men and women merely players.

The author recognize the importance of Shakespeare and his impressive work of literature.

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Promoters and enhancers are dna sequences both bound directly by ____________.

Answers

Answer:

Transcription factors

Aysha is having tests done to see if her headaches are caused by a brain tumor. She has been placed inside a large donut-shaped structure, which is taking pencil-thin x-rays of her brain while moving in a circle. This exam is a[n].

Answers

The head scan by taking X-rays of her brain is a diagnostic CT scan.

Computed tomography is a medical diagnostic test that uses X-rays to obtain cross-sectional images of the inside of the body and the skull.

It is used to quickly examine people who may have internal injuries as a result of accidents or trauma, brain inflammatory processes, detection of benign or malignant tumors.

For the examination, the person will be isolated in a machine that emits X-rays, the equipment combines a series of radiological exposures taken from different angles around the head, neck, chest and abdomen.

Therefore, we can conclude that computed tomography is a diagnostic test that allows the diagnosis of tumors and head examination.

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The ____ section in a typical system design specification contains the complete design for a new system, including the user interface, outputs, inputs, files, databases, and network specifications.

Answers

The section being described here is called;

System Components.

The correct answer here is a system component. This is because a system component is a process, program or another part of a computer's operating system that aids in management of different areas of the computer.

Now, although this system component is similar to a computer program, it does not mean that an end-user can directly use it to interact when using a computer.

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Which of the following statements must be true about the polynomial function f(x)?.

Answers

Answer the answer  is B

Explanation:

Answer: Answer is B

Explanation:

Write and answer the following in your answer sheet.

Answers

Context? Or attachment?

why are SATs so hard to study for

Answers

Because they want everyone to fail and I don’t like them…

Answer:

It is considered the finale of High School. Which depicts what role you should become in College... it is also the ticket to ur high school diploma

Explanation:

an aluminum cylinder has a mass of 420 grams and a density of 2.70 g/ml. calculate the volume of the aluminum cylinder ( science )

Answers

Sorry that I'm late, but it's 155.555555556 or 155.6. Whatever you got to round it to. Have a good day!

Which group of people was one o fthe first to spread hte idea of worshipping only one god?.

Answers

Answer:

The first people to express the idea that there is only one God were the Jews, and then later on Christians (because Jesus Christ brought Christianity.)

Explanation:

I hope this helps! :D

Which of the following devices is used in this experiment to separate the different wavelengths emitted by the light source?.

Answers

Spectroscope separates wavelengths

A spectrometer employs diffraction to divide light into a spectrum, which is a collection of wavelengths.

What different wavelengths emitted by the light source?

A light source beam's wavelengths are spectrally isolated using monochromators. A monochromator separates poly chromatic light into a variety of distinct wavelengths.

The most common application of a spectrometer is to measure the wavelengths of electromagnetic radiation (light) that have interacted with a sample.

A sample may reflect, absorb, or transmit incident light; the way the incident light changes as it interacts with the sample is a characteristic of the sample.

When calculating the concentration of a colored solution, the wavelength of maximum absorbance is used because at this wavelength even a small change in concentration can result in a large change in light absorption.

Therefore, spectrometer devices are used in this experiment to separate the different wavelengths emitted by the light source.

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According to the table, what was the hiker’s average speed for the entire hike? 2. 0 km/h 5. 7 km/h 6. 7 km/h 10 km/h.

Answers

Answer:

6.7 km/h

Explanation:

How can buddhism affect change on powerful countries that use war.

Answers

Buddhism is a religion that seeks to avoid conflict and harm, so other countries can learn from this.

The distribution of number of hours worked by volunteers last year at a large hospital is approximately normal with mean 80 and standard deviation 7. Volunteers in the top 20 percent of hours worked will receive a certificate of merit. If a volunteer from last year is selected at random, which of the following is closest to the probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 ?.

Answers

Explanation:

Using the normal distribution, it is found that the probability that the volunteer selected will receive a certificate of merit given that the  number of hours the volunteer worked is less than 90 is closest to:

B 0.123

In a normal distribution with mean \muμ and standard deviation \sigmaσ , the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}Z=σX−μ

It measures how many standard deviations the measure is from the mean.  

After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem:

The mean is of 80, hence \mu = 80μ=80 .

The standard deviation is of 7, hence \sigma = 7σ=7 .

The minimum value is the 80th percentile, which means that it is X_mXm when Z has a p-value of 0.8.

The probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90 is P(X_m < X < 90)P(Xm<X<90) , which is the p-value of Z when X = 90 subtracted by the p-value of Z when X = X_mX=Xm , hence the p-value of Z when X = 90 subtracted by 0.8.

Z = \frac{X - \mu}{\sigma}Z=σX−μ

Z = \frac{90 - 80}{7}Z=790−80

Z = 1.43Z=1.43

Z = 1.43Z=1.43 has a p-value of 0.9236.

0.9236 - 0.8 = 0.1236, hence closest to 0.123, option B.

Using the normal distribution, it is found that the probability that the volunteer selected will receive a certificate of merit given that the  number of hours the volunteer worked is less than 90 is closest to:

Letter B

In a normal distribution with mean and standard deviation , the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}\\Z=\sigma X - \mu[/tex]

It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X. In this problem:

The mean is of 80, hence [tex]\mu = 80[/tex]. The standard deviation is of 7, hence [tex]\sigma = 7[/tex]. The minimum value is the 80th percentile, which means that it is [tex]X_m[/tex] when Z has a p-value of 0.8.

The probability that the volunteer selected will receive a certificate of merit given that the number of hours the volunteer worked is less than 90, which is the p-value of Z when X = 90 subtracted by the p-value of Z when X = X_mX=Xm , hence the p-value of Z when X = 90 subtracted by 0.8.

[tex]Z = \frac{X - \mu}{\sigma}\\Z=\sigma X - \mu\\Z = \frac{90 - 80}{7}\\Z=790 - 80\\Z = 1.43Z=1.43[/tex]

Has a p-value of 0.9236.

[tex]0.9236 - 0.8 = 0.1236[/tex]

Hence closest to 0.123.

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For the lunch special at a high school cafeteria, students can get either salad or french fries as a side order. The following table shows the number of each side order for the lunch specials purchased on one day, classified by the grade of the student.

Answers

The probability that the student that's selected will be in grade 10 given that the student ordered French fries as the side will be 71/248.

From the information given, the number of students that are in grade 10 is 105. Out of all the students, 34 had salad and 71 had French fries. The total students in the school that are French fries was 248.

Therefore, the probability that the student that's selected will be in grade 10 given that the student ordered French fries as the side will be calculated thus:

= Number of students who French fries in grade 10 / Total number of people that had French fries

= 71/248

In conclusion, the correct option is 71/248.

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A boy exerts an average force of 65n when he lifts a box 1. 2m. How much work does he do?.

Answers

Answer:

78 Nm

You can multiply force (N) and distance (m).

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people often become wealthy by using a painfully simple strategy. Big Walter used to say, hed get right wet in the eyes sometimes, lean his head back with the water standing in his eyes and say, "Seem like God didnt see fit to give the black man nothing but dreams but He did give us children to make them dreams seem worth while meaning in raising in the sun? Meaning A drug company is considering marketing a new local anesthetic. The effective time of the anesthetic the drug company is currently producing has a normal distribution with a mean of 7.4 minutes with a standard deviation of 1.2 minutes. The chemistry of the new anesthetic is such that the effective time should be normally distributed with the same standard deviation, but the mean effective time may be lower. If it is lower, the drug company will market the new anesthetic; otherwise, they will continue to produce the older one. A sample size of 36 results in a sample mean of 7.1. A hypothesis test will be done to help make the decision. True or False: If the level of significance had been chosen as 0.05, the company would market the new anesthetic. Statistics question 8A survey is sent out to a sample of voters about an upcoming election via text messaging. Do you think this will produce an unbiased sample? Give your reasons for your answer. draw the graph of y=2x+3 on the grid What was transported in the middle passage of the Triangular Trade?A. rum from New EnglandB. finished goods from EnglandC. sugar from the CaribbeanD. slaves from Africa E5. A ball is thrown downward with an initial velocity of 12 m/s.Using the approximate value of g 10 m/s2, what is thevelocity of the ball 1.0 seconds after it is released? Read the quotation from chapter 5 of The Adventures of Huckleberry Finn. Well, I'll learn her how to meddle. And looky hereyou drop that school, you hear? I'll learn people to bring up a boy to put on airs over his own father and let on to be better'n what HE is. What is Twains most likely intention for employing humor within this quotation? to portray Hucks father as educated and helpful to portray Hucks father as uneducated and ignorant to convince the reader that Hucks father truly wants to help Huck to convince the reader that Hucks father has the ability to be funnyNO LINKS!!!!!!!!!!!!!!! A network provider investigates the load of its network. The number of concurrent users is recorded at fifty locations (thousands of people), These data are available in data set ConcurrentUsers.17.2 22.1 18.5 17.2 18.6 14.8 21.7 24.1 13.3 16.217.5 19.0 23.9 14.8 13.5 15.8 13.1 16.1 21.9 23.9 19.3 15.4 16.7 19.5 16.2 16.9 17.1 20.2 19.7 18.7 17.6 15.9 15.2 17.1 15.0 15.8 16.3 22.8 22.2 21.7 20.7 12.0 19.9 19.4 13.4 19.8 17.7 18.8 21.6 11.9(a) Compute the sample mean, variance, and standard deviation of the number of concurrent users.(b) Estimate the standard error of the sample mean.(c) Compute the five-point summary and construct a boxplot.(d) Compute the interquartile range. Are there any outliers?(e) It is reported that the number of concurrent users follows approximately Normal distribution. Does the histogram support this claim? Aldosterone ____________ ion exchange at the distal convoluted tubule. This helps to regulate the reabsorption of sodium and water Another word for the writers tone is _________________.A) attitudeB) themeC) opinionD) vocabulary In the Missouri Compromise, describe the dividing line. Solve for m.35m>30a. m>50b. m18d. m plz help wit this ASAP! cuz im gonna fail math! A survey concluded that 5 out of every 6 teachersdrink at least one cup of coffee in the morningbefore school. If Lubbock Middle School has 78teachers, approximately how many teacherswould you predict drink at least one cup of coffee? What happens when an action potential is produced with a signal that is stronger than threshold?A)weaker action potential generatedB)no action potential generatedC)action potential has same strength as thresholdD)stronger action potential generated Write the equation of the circle centered at (10, 4) that passes through (14, 12). Plz solve. I will give 50 points for whoever gets it right. Harassment an assailant instigates on a victim through online platforms, such as instant messaging, text messaging, emails, and websites is considered __________________. The AVID teachers are collecting boxes for charity. They have asked 60 teachers to donate 5 boxes. if 20% of the teachers donate 5 boxes each, how many boxes will AVID collect? please show work