Chapter 6, Problem 6.40NP

(a)

Interpretation Introduction

Interpretation:

The value of $\Delta G_R^0\text{ at 298 K and 310 K}$ should be calculated.

Concept Introduction :

The relation between Gibbs free energy change, enthalpy change and entropy change is represented as follows:

  $\Delta G_R^0\text{ = }\Delta H_R^0-T.\Delta S_R^0$

Here,

  $\begin{array}{l}\Delta G_R^0\text{ - Gibbs free energy change}\\ \Delta H_R^0\text{ - Enthalpy change}\\ \Delta S_R^0\text{ - Entropy change}\\ \text{T - temperature}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The value of $\Delta H_R^0$ and $\Delta S_R^0$ at 310 K should be calculated assuming all heat capacities are constant in this temperature interval.

Concept Introduction :

The value of enthalpy change, specific heat capacity change and temperature change is represented as follows:

  $\Delta H_R^0\text{(310 K) = }\Delta H_R^0\text{(310 K) + }\Delta C_P.\Delta T$

Here,

  $\begin{array}{l}\Delta H_R^0\text{ - enthalpy change}\\ \Delta C_P\text{ - specific heat capacity change}\\ \Delta T\text{ - temperature change}\end{array}$