   Chapter 18, Problem 44PS

Chapter
Section
Textbook Problem

The formation constant, Kf, for the reactionAg+(aq) + 2 NH3(aq) ⇄ [Ag(NH3)2]+(aq)is 1.1 × 107. What is the value of ΔrG° for this reaction? Is the reaction product- or reactant-favored at equilibrium?

Interpretation Introduction

Interpretation:

The value of ΔrG for the given process should be calculated.

Concept introduction:

The Gibbs free energy or the free energy change is a thermodynamic quantity represented by ΔrG. It is related to the equilibrium constant K by the equation,

ΔrG=RTlnK.

Explanation

The ΔrG value for the formation of [Ag(NH3)2]+(aq) is calculated below.

Given:

For the reaction of the formation of [Ag(NH3)2]+(aq) the value formation constant Kf is 1.1×107 at 25 C

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