Chapter 17, Problem 56E

Interpretation Introduction

Interpretation:

The validation of the spontaneity of the given reaction is to be stated. If ${\text{BaCO}}_{\text{3}}$ is placed in an evacuated flask, the partial pressure of ${\text{CO}}_{\text{2}}$ at equilibrium is to be calculated. The effect of temperature on the spontaneity of the reaction is to be stated. The temperature at which the partial pressure of carbon dioxide is $\text{1}\text{.0}\text{atm}$ is to be calculated.

Concept introduction: The energy available for doing a useful work is known as Gibbs free energy. The free energy change of a reaction under nonstandard conditions is expressed by the relation,

$\Delta G=\Delta G^{\text{ο}}+\text{R}T\ln Q$

If sign of $\Delta G^{\text{ο}}$ is positive, then the reaction is spontaneous.

To determine:The validation of the spontaneity of the given reaction, the partial pressure of ${\text{CO}}_{\text{2}}$ at equilibrium, the effect of temperature on the spontaneity of the reaction and the temperature at which the partial pressure of carbon dioxide is $\text{1}\text{.0}\text{atm}$ .