The sign of Δ H for an exothermic reaction and endothermic reaction has to be described. Concept Introduction: The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure, H = E + P V Δ H refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy Δ H corresponds to change in heat content of the system at constant pressure and hence it is equivalent to q p . Thus, Δ H = q p Exothermic reaction is a reaction during which heat energy is released. Endothermic reaction is a reaction during which heat energy is absorbed.

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Answer 1

Question

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

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Answer 2

Question

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

Answer 6

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

Answer 7

Chapter 8, Problem 8.55SP

Interpretation Introduction

Interpretation:

The sign of ΔH for an exothermic reaction and endothermic reaction has to be described.

Concept Introduction:

The heat content of the system is termed as enthalpy and it is represented by ‘H’. It is the sum of internal energy ‘E’ and product of volume and pressure,

H=E+PV

ΔH refers to change in enthalpy. Since enthalpy corresponds to the heat content of the system, change in enthalpy ΔH corresponds to change in heat content of the system at constant pressure and hence it is equivalent to qp. Thus,

ΔH=qp

Exothermic reaction is a reaction during which heat energy is released.

Endothermic reaction is a reaction during which heat energy is absorbed.

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 the sign of Delta H for an exothermic reaction and an endothermic reaction.

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