If you add more molecules but do not change the temperature or the pressure, what will happen to the system?
the molecules will move faster
O the volume will decrease
the volume will increase
the molecules will move slower

Answers

Answer 1

Answer:

the volume will increase

Explanation:

The kinetic energy of gas molecules depend upon the temperature . If temperature is increased , the molecules will move faster . When temperature is decreased , they move slower .

Hence when more molecules are added to a gas without changing its temperature , the velocity of gas molecules will remain unchanged .

Since pressure  is also constant , it is volume which will be increased .

It can be explained from universal gas formula as follows

PV = nRT

P , R and T is constant ,

V ∝ n

Volume is proportional to n which depends upon number of molecules .

So volume will increase if number of molecules increases .


Related Questions

PLEASE HELP ILL EVEN MARK AS BRAINLIEST

Answers

Answer:

Cl: -29.272*

Explanation:

The other temperatures go from lowest to highest, H: -423* F, N: -320* F, F: -306.6* F

5. Solve the following crossword puzzle.


a. Maximum energy generation in India is done using ........ energy.

b. energy is a renewablesource of
energy.

c.Solar energy can be called.... energy.

e. ......... energy of water in dams is used for generation of electricity.

Answers

Answer:

I think it is b

Explanation:

Hi! My responsibility is to add and protection to plant cells. what i am​

Answers

Probably a cell wall

PLEASE HELP!!!

True or False: Density is the property of a substance that describes how much mass of a substance is contained in the given weight of the substance.

A simple true or false please! ​

Answers

Answer:

False

Infered from the equation:

Density=[tex]\frac{Mass}{Volume}[/tex]

So it has no relation with weight of substance

How do you shift realities?
I’ve been trying for weeks now

Answers

Answer:

1. learn how to script

2. be in a good state of mind

3. drink water water warer

4.search for yt tutorials

Explanation:

In the laboratory you dissolve 12.7 g of silver fluoride in a volumetric flask and add water to a total volume of 125. mL. What is the molarity of the solution?​

Answers

Answer:

Molarity = 2.4 M

Explanation:

Given data:

Mass of silver fluoride = 12.7 g

Volume of water = 125 mL (125 mL× 1 L /1000 mL = 0.125 L)

Molarity of solution = ?

Solution:

Number of moles of silver fluoride:

Number of moles = mass/molar mass

Number of moles = 12.7 g/ 41.98 g/mol

Number of moles = 0.30 mol

Molarity:

Molarity = number of moles of solute / volume in L

Molarity = 0.30 mol / 0.125 L

Molarity = 2.4 M

in the reaction A+B = C+D if B is the excess what is the limiting reactant

Answers

Explanation:

Determining the Limiting Reagent

One reactant (A) is chosen, and the balanced chemical equation is used to determine the amount of the other reactant (B) necessary to react with A. If the amount of B actually present exceeds the amount required, then B is in excess, and A is the limiting reagent.

An object has a volume of 825 cm3 and a density of 13.6 g/cm3. Find its
mass

Answers

answer: 11,200 g

step by step explanation:

D= M/V
M= DV
M= (13.6 g/cm^3) (825cm^3)
M= 11,200 g

The mass of an object is the product of its volume and density. The mass of a the object with a volume of 825 cm³ and a density of 13.6 g/cm³ is 11220 g.

What is density ?

Density of substance is the measure of its mass per unit volume. It describes how closely its particles are packed. Density depends on the bond type, temperature and pressure.

Volume of the object is the space occupied by its particles. Volume can be expressed in L, ml, cm³, dm³ etc. Only solids and liquids has a definite volume and the volume of gases is that of the container.

Give that, volume of the object = 825  cm³

density =  13.6 g/cm³

Mass = volume × density

m = 825  cm³ ×  13.6 g/cm³ = 11220 g

Therefore, the mass of the object is 11220 g.

Find more on density:

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Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface which process causes this difference in temperature?
1. convection
2. evaporation
3. radiation
4. conduction

Submit Answer​

Answers

Answer:

convection

Explanation:

I think answer should be convection please let me know if it’s correct or not okay thanks bye

Complete the following equations (note that the equations are not balanced). Use the activity series if necessary. Li >>Ba > Sr> Ca > Na > Mg > AI > Mn> Zn > Cr> Fe > Cd > Co > Ni > Sn > Pb>H> Sb> Bi > Cu > Ag > Pd > Hg > Pt > Au Na+Cl2 → ?
- NaCl
- NaCl2
- Na2Cl​

Answers

Answer:

its C

Explanation:

Answer: NaCl

Explanation:

Na+ Cl2 ----> NaCl

Which statement correctly compares electric charge with electric current?
A.
They both require a human to make them.
B. Neither require charged particles.
C. They both require a battery and a bulb
D. They both require a movement of charged particles.

Answers

Answer:

Your answer would be D) They both require a movement of charged particles

Explanation:

In short terms both the charge and the current are made up of charged particles that are always moving, they constantly move to well... stay charged, if they stopped, then the charge would fade until there is nothing left, and if there is nothing left -it means there would be no electricity to use

                              ~Notify me if you have questions~

                              Have a nice day and hope it helps!

                                                      ^ω^

-- XxFTSxX

What chemical compound is H4PN?

Answers

Answer:

Diphosphane

Explanation:

Hope it helps

Which of the following is not a form of precipitation?

A
groundwater

B
balls of hail

C
sleet

D
snowflakes

Answers

A.

Reason: cuz i need points noob

What is the volume of a 492.2g sample of Kr gas?
0.007601 L
131.6 L
5.870 L
21.97 L

Answers

Answer:

131.6 L

Explanation:

Ideal gas law is valid only for ideal gas not for vanderwaal gas. Therefore, the correct option is option B that is 131.5l. There is no force of attraction between the particles.

What is ideal gas equation?

Ideal gas equation is the mathematical expression that relates pressure volume and temperature. Ideal gas is a hypothetical gas. Vanderwaal behave as ideal gas at high temperature and low pressure.

Mathematically,

PV=nRT

where,

P = pressure=1 atm

V= volume=?

n =number of moles=given mass/ molar mass

                                =  492.2/ 83.79

                                = 5.87 moles

T =temperature = 273K

R = Gas constant = 0.0821 L.atm/K.mol

1× V = 5.87 × 0.0821 L.atm/K.mol × 273 K

V =131.5l

131.5l is the  volume of a 492.2g sample of Kr gas.

Therefore, the correct option is option B that is 131.5l.

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How many atoms are there in 3.3 moles of strontium?

Answers

Explanation:

Multiply the moles Fe by 6.022×1023 atoms/mol

At what temperature will 41.6 grams of nitrogen gas (N2) exert a pressure of 1 point
1.07 atm in a 20.0 L cylinder?

Answers

Answer:

The temp is 176k

Explanation:

Think of a substance that does not dissolve in water. Any Examples?

Answers

Answer:

sand, flour, water

Explanation:

Some substances that don't dissolve in water:

- sand

-flour

-oil

-fats

-plastics

What is one factor of how species are distributed on the Earth's continents?​

Answers

Answer:

The most apparent general environmental factor affecting the distribution of a species is climate. Suitable conditions of temperature and moisture are vital to all organisms. Certain species are intolerant of cold; other species cannot live in warm climates.

A gas has a volume of 250.0 liters at 17.0 °C and 3.00 atm of pressure. what volume must the gas be increased for the gas to be at STP conditions?

Answers

Answer:

0.706 L (Liters)

Explanation:

P1V1 = P2 V2 3 atm 250.0 mL = 1 atm X

T1 T2 290 K 273 K

706 mL = X

The increased volume will be "706 L".

According to the question,

Pressure,

Initial, [tex]P_1 = 3 \ atm[/tex]Final, [tex]P_2 = 1 \ atm[/tex]

Temperature,

Initial, [tex]T_1 = 17^{\circ} C[/tex] or, [tex]290 \ K[/tex]Final, [tex]T_2 = 273 \ K[/tex]

Volume,

Initial, [tex]V_1 = 250 \ L[/tex]Final, [tex]V_2 = \ ?[/tex]

By using the Boyl's and Charl's combination law, we get

→ [tex]\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}[/tex]

or,

→ [tex]V_2 = \frac{P_1 V_1 T_2}{T_1 P_2}[/tex]

By putting the values, we get

→      [tex]= \frac{3\times 250\times 273}{290\times 1}[/tex]

→      [tex]= 706 \ L[/tex]

Thus the aforementioned answer is right.

Learn more about pressure here:

https://brainly.com/question/19156022

help I'm giving you a lot of points and do not put random or crazy stuff the real question


You are trying to design a homemade ice pack. As you select the chemicals for this reaction, should you choose an endothermic reaction or an exothermic reaction? Why?

Answers

Answer:

Endothermic

Explanation:

Because Endothermic is cold and exothermic is hot and if you are using an ice pack it would be Endothermic and if you were using something that was hot it would be exothermic

please help PLSSSS
2020020200

Answers

Answer:Well the water molecules attract each other, and the oil molecules stick together.

sorry number two im not sure sorry:(

Explanation:

what is a similar math problem to the calcium and water equation

Answers

Answer: Calcium is a metal and a typical reaction of a metal with water will be as follows: ... the chemical reaction for calcium and water will be: [Word Equation] Calcium + 48.

Explanation: Please Please mark me as brainliest!

PLEASE HELP!! ILL MARK BRAINLIST!! ​

Answers

Ok I will get a hold on you tomorrow morning to see

What is genetic variation?

Answers

A genetic variation is a term used to describe a variation in the DNA sequence in our genomes.

Put the following metals in order of reactivity.

Iron, potassium, copper, zinc, lead, calcium, magnesium, sodium, gold



Most reactive



















Least reactive



Complete the equations

metal + oxygen → …………………….

metal + water → ……………………. + …………………….

metal + acid → ……………………. + …………………….

What is formed when magnesium burns in air?

…………………….…………………….…………………….…………………….

What happens when copper is put into a beaker of water?

…………………….…………………….…………………….…………………….

How do you test for hydrogen gas?

…………………….…………………….…………………….…………………….

What is formed when sodium reacts with hydrochloric acid?

…………………….…………………….…………………….…………………….

How should metals more reactive than carbon be extracted from their ores?

…………………….…………………….…………………….…………………….

Why is gold used in jewelry?

…………………….…………………….…………………….…………………….

What is the rule for displacement reactions?

…………………….…………………….…………………….…………………….

Tick which reactions would happen



copper

Magnesium

zinc

copper sulfate







Magnesium

sulfate







Zinc Sulfate









Using the reactions from Q10. Choose 1 reaction you’ve ticked and explain why it happens. Choose 1 reaction you haven’t ticked and explain why it doesn’t happen.

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

Write word and symbol equations for the first reaction from Q11.

…………………….…………………….…………………….…………………….

…………………….…………………….…………………….…………………….

Answers

Answer: copper, zinc, lead, magnesium, potassium, sodium, iron, gold.

Explanation:

4 In which medium would an electromagnetic
wave travel the fastest?
A. air
C. vacuum
B. granite
D. water

Answers

Answer:

the correct answer is air.

Answer:

water

Explanation:

the medium an electromagnetic wave travel the fastest is in water

I NEED HELP ASAP !
1. How many molecules are in 643.21 grams of
Mg3(PO4)22
2. How much space (Liters) does 4.061 x 10-24
molecules of H202 take up?
3. How many H20 atoms are in 479.3 grams of
H20 gas?
4. How many grams does 80.34 L of Ca(NO3)2
weigh?
5. How many Liters of space does 893.7 grams
of CO2 take up?
6. How many grams are in 5139 x10425
molecules of Al(OH)3

Answers

Answer:

1.

643.21g  1 mol  6.022^23

262.87 g   1 mol

= 1.4735E24     [Mg3(PO4)2]

2.

4.061x10^24          1mol                22.4 (L)  

6.022^23       1mol

= 151 liters H2O2

3.

479.3g   1 mol   6.022^23

18.02g    1mol

= 1.60E25 H20 atoms

4.

80.34L   1mol       164.1

22.4L       1mol

588.6g   Ca(NO3)2

5.

893.7g   1mol       22.4

44.01g   1mol

= 427 L CO2 or 427.4

6.

5.39 x 10^25     1mol     78.01

6.022^23    1mol

= 6980g Al(OH)3

hope this helps!! :)

What did Antoine Lavoisier’s experiments demonstrate?
A. Atoms always split into pairs during a chemical change.
B. Mass is neither lost nor gained during a chemical change.
C. Matter can be created during a chemical change.
D. Energy is neither lost nor gained during a chemical change.

Answers

Lavoisier disproved the phlogiston theory. He demonstrated that there was an element called oxygen that played a major role in combustion. He also showed that the mass of products in a reaction are equal to the mass of the reactants. In other words, no mass is lost in a chemical reaction.

4. What is the correct surface areas for a 45nm
wide cube?

Answers

Answer:

A = 12150 nm²

Explanation:

The side of a cube, a = 45 nm

We need to find the surface area of the cube.

The formula for the surface area of a cube is given by :

A = 6a²

Substituting the value of a in the above formula.

A = 6(45)²

= 12150 nm²

So, the surface area of the cube is 12150 nm²

Atmosphere
B
Ocean
Land
с
Which arrow or arrows represents a change of state from a liquid to a gas caused by the
sun's energy?
A. arrow A
B. arrow B
C. arrow A and arrow B
D. arrow B and arrow C

Answers

I can’t see the arrows but it would be evaporation so water to air
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