Physical Chemistry
Physical Chemistry
3rd Edition
ISBN: 9780321812001
Author: ENGEL, Thomas/ Reid
Publisher: Pearson College Div
Question
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Chapter 6, Problem 6.15NP

(a)

Interpretation Introduction

Interpretation:

The value of ΔG0 for the biological synthesis of ammonia at 298 K should be calculated.

Concept Introduction :

For a general reaction as follows:

  ReactantProduct

The value of change in Gibbs free energy of a reaction is calculated as follows:

  ΔGR=ΔGf(Products) - ΔGf(Reactants)

(b)

Interpretation Introduction

Interpretation:

The equilibrium constant for the biological synthesis of ammonia at 298 K should be calculated.

Concept Introduction :

The change in Gibbs free energy of the reaction can be calculated from the equilibrium constant as follows:

  ΔGR=RTlnKP

Here,

  ΔGR - Gibbes free energy changeR - universal gas constantT - temperatureKP- equilibrium constant

(c)

Interpretation Introduction

Interpretation:

Whether the pathway is spontaneous should be determined.

Concept Introduction :

Spontaneity of a reaction can be predicted by the equilibrium constant. If KP <<1 forward reaction is not spontaneous. The backward reaction is favorable. If KP >>1 forward reaction is spontaneous.

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Chapter 6 Solutions

Physical Chemistry

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