To find the heat transfer rate in the evaporator Concept Introduction: We find the Excess enthalpy of H 2 SO 4 of reactant and products from the H-x diagram of H 2 SO 4 Then we find the enthalpy of Pure water. The heat transfer rate in the evaporator will be found by Q = m 3 H 3 + m 2 H 2 − m 1 H 1 Where, Feed rate of Feed entering the evaporator = m 1 Feed rate of Feed exiting the evaporator = m 2 Rate of water evaporating = m 3 = m 1 - m 2 Enthalpy of H 2 SO 4 (20-wt-%) = H 1 Enthalpy of H 2 SO 4 (70-wt-%) = H 2 Temperature of feed = T 1 Temperature at outlet = T 2

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Answer 1

Question

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

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Answer 2

Question

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

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Answer 3

Question

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

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Answer 4

Question

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

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Answer 5

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

Answer 6

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

Answer 7

Chapter 11, Problem 11.20P

Interpretation Introduction

Interpretation:

To find the heat transfer rate in the evaporator

Concept Introduction:

We find the Excess enthalpy of H₂SO₄of reactant and products from the H-x diagram of H₂SO₄

Then we find the enthalpy of Pure water.

The heat transfer rate in the evaporator will be found by

Q=m3H3+m2H2−m1H1

Where,

Feed rate of Feed entering the evaporator = m₁

Feed rate of Feed exiting the evaporator = m₂ Rate of water evaporating = m₃= m₁- m₂

Enthalpy of H₂SO₄ (20-wt-%) = H₁ Enthalpy of H₂SO₄ (70-wt-%) = H₂ Temperature of feed = T₁ Temperature at outlet = T₂

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 11 - Prob. 11.1P Ch. 11 - Prob. 11.2P Ch. 11 - Prob. 11.3P Ch. 11 - Prob. 11.4P Ch. 11 - Prob. 11.5P Ch. 11 - Prob. 11.6P Ch. 11 - Prob. 11.7P Ch. 11 - Prob. 11.8P Ch. 11 - Prob. 11.9P Ch. 11 - Prob. 11.10P

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Chapter 11 Solutions