10. What is the change in the boiling point of water at 1000 C per Pa change under atmospheric pressure conditions? The molar enthalpy of vaporization is 40.69 kJ mol-1, the molar volume of liquid water is 0.019 x 10-3 m3 mol-1, and the molar volume of steam is 30.199 x 10-3m3 mol-1, all at 1000 C and 1.01325 bar. (Hint: change in temperature per change in pressure)

Answers

Answer 1

Answer:

The answer  is  [tex]\frac{dT}{dP} = 2.84*10^{-4}\ K/Pa[/tex]

Explanation:

From the question we are told that

  The boiling point of water is  [tex]T_b = 100^oC = 100 + 273 = 373 \ K[/tex]

  The enthalpy of vaporization is  [tex]\Delta H_{vap} = 40.69 \ kJ mol-1 = 40.69 *10^{3} \ J/mol[/tex]

  The molar volume of liquid water is  [tex]V =0.019 * 10^{-3} m^3 mol^{-1}[/tex]

   The molar volume of steam is  [tex]V_s = 30.199 * 10^{-3} \cddot m^3\cdot mol^{-1}[/tex]

  The pressure is  [tex]P = 1.01325 \ bar[/tex]

Gnerally from Clausius Clapeyron equation we have that

      [tex]\frac{dP}{dT} = \frac{\Delta H_{vap}}{ T * \Delta V}[/tex]

Here  [tex]\Delta V = V_s - V[/tex]

=>     [tex]\Delta V = [30.199 * 10^{-3} ] - [ 0.019 * 10^{-3}][/tex]

=>     [tex]\Delta V = [30.199 * 10^{-3} ] - [ 0.019 * 10^{-3}][/tex]      

=>     [tex]\Delta V = 0.03018 \ m^3 mol^{-1}[/tex]          

So

    [tex]\frac{dP}{dT} = \frac{40.69 *10^{3} }{ 373 * 0.03018}[/tex]

=>  [tex]\frac{dP}{dT} = 3522.28 \ Pa/K[/tex]

Generally from the we are ask to obtain the change in the boiling point of water at 1000 C per Pa change under atmospheric pressure conditions which is mathematically represented as

       [tex]\frac{d T}{dP}[/tex]

So

    [tex]\frac{dT}{dP} = \frac{1}{\frac{dP}{dT} } = \frac{1}{3522.28}[/tex]

=> [tex]\frac{dT}{dP} = \frac{1}{\frac{dP}{dT} } = 2.84*10^{-4}\ K/Pa[/tex]


Related Questions

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An atom is the smallest particle of an element that still has the properties of that element. Atoms, in turn, are composed of subatomic particles, including negative electrons, positive protons, and neutral neutrons. The number of protons in an atom determines the element it represent

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If heat is required for a chemical reaction to occur, from where does the energy come?

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Answer:

Chemical energy is energy stored in the bonds of chemical compounds, like atoms and molecules. This energy is released when a chemical reaction takes place. Usually, once chemical energy has been released from a substance, that substance is transformed into a completely new substance.

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Why do you think the hot red water sank to the bottom?

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A chemist is asked to determine the specific heat capacity of an unknown mineral. The 149-g sample was heated to 92.7°C and placed into a calorimeter containing 81.4 g of water at 20.0°C. The heat capacity of the calorimeter was 12.8 J/K. The final temperature in the calorimeter was 23.7°C. What is the specific heat capacity (in J/g°C) of the mineral? Enter to 4 decimal places.​

Answers

Answer:

The specific heat of the mineral is 0.1272J/g°C

Explanation:

The sample is given energy to the calorimeter and the sample of water.

The energy released for the sample is equal to the energy absorbed for both the calorimeter and the water:

C(Sample)*m*ΔT = C(Calorimeter)*ΔT + C(water)*m*ΔT

Where C is specific heat

m is mass of the sample and water

And ΔT is change in temperature

C(Sample)*149g*(92.7°C-23.7°C) = 12.8J/K*(23.7°C-20.0°C) + 4.184J/g°C*81.4g*(23.7°C-20.0°C)

C(Sample)*10281g°C = 47.36J + 1260.1J

C(Sample) = 0.1272J/g°C

The specific heat of the mineral is 0.1272J/g°C

The specific heat of the mineral is 0.1272J/g°C

Calculation of the specific heat:

The energy released for the sample should be equivalent to the energy absorbed for both the calorimeter and the water:

So,

C(Sample)*m*ΔT = C(Calorimeter)*ΔT + C(water)*m*ΔT

here C is specific heat

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Now

C(Sample)*149g*(92.7°C-23.7°C) = 12.8J/K*(23.7°C-20.0°C) + 4.184J/g°C*81.4g*(23.7°C-20.0°C)

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C(Sample) = 0.1272J/g°C

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When a solution containing 1.4000 g of Ba(NO3)2 and 2.4000 g of HSO3NH2 is boiled, a precipitate forms. One possible identity for this precipitate is Ba(SO3NH2)2.
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b) Calculate the experimental molar mass if 1.6925 g of product were formed.

Answers

Answer:

See explanation for detailed solution

Explanation:

The balanced reaction equation is Ba(NO3)2 + 2HSO3NH2 → Ba(SO3NH2)2 + 2HNO3

Number of moles of Ba(NO3)2 = 1.4 g/ 261.337 g/mol = 5.36 × 10^-3 moles

From the reaction equation;

1 mole of Ba(NO3)2 yields 1 mole of Ba(SO3NH2)2

5.36 × 10^-3 moles of Ba(NO3)2 yields 5.36 × 10^-3 moles of Ba(SO3NH2)2

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2 moles of HSO3NH2 yields 1 mole of Ba(SO3NH2)2

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b)

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Which properties of grains determine the texture of rocks? Check all that apply.

feel

pattern

color

shape

size


I will mark Brainlyest

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Shape the correct answer

Answer:

color shape and size

Explanation:

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Answer:

m = 455,6 g

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The mass can be determined by calculating the amount of substance times the molar mass:

m = n * M

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[tex]Na_{2}C_{2}O_{4}[/tex]

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M(Na2C2O4) = 2 * 23 g/mol + 2 * 12 g/mol + 4 * 16 g/mol

M(Na2C2O4) = 134 g/mol

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What is the density of aluminium? |

एल्यूमीतनयम का घनत्व कतना होता है?

A : 2.7 g/cm3 | 2.7 g/cm3

B : 3.7 g/cm3 | 3.7 g/cm3

C : 4.7 g/cm3 | 4.7 g/cm3

D : 5.7 g/cm3 | 5.7 g/cm3

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Answer:

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Answer:a, c, d

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Answers

Answer:

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Explanation:

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Sublimation

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K

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Explanation:

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Answers

Answer:

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Explanation:

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I hope this has the information that you need

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niether

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One differentiating characteristic between vascular and nonvascular plants is the lack of active transport structures in the nonvascular plants. How does the lack of xylem or phloem contribute to the smaller size of the nonvascular plants?

Nonvascular plants are smaller because xylem and phloem help a plant stand up taller.
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Answer:

One of the most important characteristics of non-vascular plants is the absence of vascular tissues. Non-vascular plants do not have the vascular tissues known as xylem and phloem. ... As they do not have any vascular tissue, they cannot retain water for long time or transport it to other parts of the plant.

Explanation:

Answer:

fern

Explanation:

HELPPP

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other element?
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b. Iron and bromine
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B is the answer I think hope this helps

"During a chemical reaction, you must have the same amount of substance
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Answer:

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Explanation:

Law of conservation of mass:

According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

In given photosynthesis reaction:

6CO₂ + 6H₂O   →   C₆H₁₂O₆ +  6O₂

there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

Let us consider the general chemical reaction.

A   +   B    →      C

5g +  5g           10g

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Answers

Answer:

the answer is D

Explanation:

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Answer:

Hydrogen.

Explanation:

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Hope this helps! Feel free to mark me Brainliest if you feel this helped. :)

Answer:

the answer is H. (hydrogen)

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I'm not sure bro but i will try for you

What are the four main types of tissues in the human body?

Answers

connective tissue, epithelial tissue, muscle tissue, and nervous tissue.

Answer:

epithelial tissue, connective tissue, muscle tissue, and nerve tissue

Explanation:

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