(a) Interpretation: An expression for the heat capacities at constant volume for HCN should be written. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: C P = 35.3 + 0.0291 T Where, T = temperature

Question

We have a feed that is a binary mixture of methanol and water (55.0 mol% methanol) that is sent to a system of two flash drums hooked together. The vapor from the first drum is cooled, which partially condenses the vapor, and then is fed to the second flash drum. Both drums operate at a pressure of 1.0 atm and are adiabatic. The feed rate to the first drum is 1000.0 kmol/h. We desire a liquid product from the first drum that is 30.0 mol% methanol (x1 = 0.300). The second drum operates at a fraction vaporized of (V/F)2 = 0.250. The equilibrium data are in Table 2-8. Find the following for the first drum: y1, T1, (V/F)1, and vapor flow rate V1. Find the following for the second drum: y2, x2, T2, and vapor flow rate V2.

Answer 1

Question

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

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We have a feed that is a binary mixture of methanol and water (55.0 mol% methanol) that is sent to a system of two flash drums hooked together. The vapor from the first drum is cooled, which partially condenses the vapor, and then is fed to the second flash drum. Both drums operate at a pressure of 1.0 atm and are adiabatic. The feed rate to the first drum is 1000.0 kmol/h. We desire a liquid product from the first drum that is 30.0 mol% methanol (x1 = 0.300). The second drum operates at a fraction vaporized of (V/F)2 = 0.250. The equilibrium data are in Table 2-8. Find the following for the first drum: y1, T1, (V/F)1, and vapor flow rate V1. Find the following for the second drum: y2, x2, T2, and vapor flow rate V2.

Show that the overall mass transfer coefficient, Ky, can be related to the individual gas and liquid film mass transfer coefficients, ky and kx, respectively, by the following equation: 1 K y = 1 + m kk y x

Use the approach given to solve

Answer 2

Question

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

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Answer 3

Question

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Expert Solution & Answer

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Answer 4

Question

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Expert Solution & Answer

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Answer 5

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Answer 6

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Answer 7

Chapter 8, Problem 8.2P

Interpretation Introduction

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Answer 8

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Answer 9

Interpretation Introduction

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

Answer 10

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Answer 14

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Answer 15

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Answer 25

Ch. 8 - 8.1. The specific internal energy of formaldehyde...Ch. 8 - Prob. 8.2P Ch. 8 - Prob. 8.3P Ch. 8 - Prob. 8.4P Ch. 8 - Prob. 8.5P Ch. 8 - 8.6. Table B.7 of Appendix B gives the following...Ch. 8 - Prob. 8.7P Ch. 8 - Two formulas for the heat capacity of CO are given...Ch. 8 - 8.9. Table B.2 lists values of the heat capacity...Ch. 8 - Prob. 8.10P

(a) Interpretation: An expression for the heat capacities at constant volume for HCN should be written. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: C P = 35.3 + 0.0291 T Where, T = temperature

Solution Summary: The author explains that an expression for the heat capacities at constant volume for hydrogen cyanide should be written.

Concept explainers

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

Chapter 8 Solutions

(a) Interpretation: An expression for the heat capacities at constant volume for HCN should be written. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: C P = 35.3 + 0.0291 T Where, T = temperature

Solution Summary: The author explains that an expression for the heat capacities at constant volume for hydrogen cyanide should be written.

Concept explainers

(a) Interpretation: An expression for the heat capacities at constant volume for HCN should be written. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: CP = 35.3 + 0.0291 T Where, T = temperature

(b) Interpretation: The ΔH for the constant-pressure process should be calculated. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: CP = 35.3 + 0.0291 T Where, T = temperature

(c) Interpretation: The change in internal energy for the constant-pressure process should be calculated. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: CP = 35.3 + 0.0291 T Where, T = temperature.

(d) Interpretation: Th reason for the value of ΔH to not change for the given case should be explained. Concept introduction: The heat capacity at constant pressure of hydrogen cyanide is given below: CP = 35.3 + 0.0291 T Where, T = temperature.

Chapter 8 Solutions

(a)

Interpretation:

An expression for the heat capacities at constant volume for HCN should be written.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

(b)

Interpretation:

The ΔH for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature

(c)

Interpretation:

The change in internal energy for the constant-pressure process should be calculated.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.

(d)

Interpretation:

Th reason for the value of ΔH to not change for the given case should be explained.

Concept introduction:

The heat capacity at constant pressure of hydrogen cyanide is given below:

CP = 35.3 + 0.0291 T

Where, T = temperature.