Chapter 13, Problem 74E

Interpretation Introduction

Interpretation:

The metal oxide that can be reduced to from metal on reaction with C atom from the given list needs to be determined using the coupled reactions method.

Concept introduction:

A non-spontaneous reaction can be changed to spontaneous reaction either by changing the reaction’s conditions like temperature or by combining the reaction with other reaction to get an overall spontaneous reaction. The spontaneity of the reaction can be determined with the help of sign of $\text{ΔrG}°$ of the reaction. If the sign is negative, reaction is considered as a spontaneous reaction.

At standard conditions, the $\text{ΔrG}°$ can also calculate with the help of $\text{ΔrG}°$ of reactant and products.

$\text{ΔrG° = ΔrG°(product) - ΔrG°(reactant)}$