The given set of reactions has to be predicted as spontaneous and non-spontaneous at the given conditions. Concept introduction: Thermodynamics is the branch of science that relates heat and energy in a system. The four laws of thermodynamics explain the fundamental quantities such as temperature, energy and randomness in a system. Entropy is the measure of randomness in a system. For a spontaneous process there is always a positive change in entropy. Free energy (Gibbs free energy) is the term that is used to explain the total energy content in a thermodynamic system that can be converted into work. The free energy is represented by the letter G. All spontaneous process is associated with the decrease of free energy in the system. The equation given below helps us to calculate the change in free energy in a system. ΔG = Δ Η - T Δ S Where, ΔG is the change in free energy of the system Δ Η is the change in enthalpy of the system T is the absolute value of the temperature Δ S is the change in entropy in the system

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Chapter 18, Problem 18.19QP

(a)

Interpretation Introduction

Interpretation:

The given set of reactions has to be predicted as spontaneous and non-spontaneous at the given conditions.

Concept introduction:

Thermodynamics is the branch of science that relates heat and energy in a system. The four laws of thermodynamics explain the fundamental quantities such as temperature, energy and randomness in a system. Entropy is the measure of randomness in a system. For a spontaneous process there is always a positive change in entropy. Free energy (Gibbs free energy) is the term that is used to explain the total energy content in a thermodynamic system that can be converted into work. The free energy is represented by the letter G. All spontaneous process is associated with the decrease of free energy in the system. The equation given below helps us to calculate the change in free energy in a system.

ΔG = ΔΗ- TΔS

Where,

ΔG is the change in free energy of the system

ΔΗ is the change in enthalpy of the system

T is the absolute value of the temperature

ΔS is the change in entropy in the system

(b)

Interpretation Introduction

Interpretation:

The given set of reactions has to be predicted as spontaneous and non-spontaneous at the given conditions.

Concept introduction:

Thermodynamics is the branch of science that relates heat and energy in a system. The four laws of thermodynamics explain the fundamental quantities such as temperature, energy and randomness in a system. Entropy is the measure of randomness in a system. For a spontaneous process there is always a positive change in entropy. Free energy (Gibbs free energy) is the term that is used to explain the total energy content in a thermodynamic system that can be converted into work. The free energy is represented by the letter G. All spontaneous process is associated with the decrease of free energy in the system. The equation given below helps us to calculate the change in free energy in a system.

ΔG = ΔΗ- TΔS

Where,

ΔG is the change in free energy of the system

ΔΗ is the change in enthalpy of the system

T is the absolute value of the temperature

ΔS is the change in entropy in the system

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