The enthalpy change of the reaction is to be calculated. Concept introduction: Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps. On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction. On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

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Answer 1

Question

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

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Question 5 of 26 Using the provided table, determine the enthalpy for the reaction C3H8 (g) + 5 O2 (g) → 3 CO2 (g) + 4 H2O (g) Substance AH¡ (kJ/mol) C3H8 (g) -108.4 O2 (g) CO2 (g) -393.5 H2O (g) -241.8

Answer 2

Question

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

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Check out a sample textbook solution

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Answer 3

Question

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

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Answer 4

Question

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

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Answer 5

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

Answer 6

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

Answer 7

Chapter 5.7, Problem 1PPB

Interpretation Introduction

Interpretation:

The enthalpy change of the reaction is to be calculated.

Concept introduction:

Hess’s law states that the change in enthalpy of a reaction remains the same whether the reaction takes place in a single step or in a number of steps.

On adding the thermochemical equations, the value of enthalpy change is also added, which gives the enthalpy change of the net reaction.

On reversing any equation, the sign of enthalpy change value is changed to the opposite sign.

Answer 8

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Answer 9

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Answer 10

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Answer 11

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Solution Summary: The author explains that Hess's law states that the change in enthalpy of a reaction remains the same regardless of the reaction taking place.

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