Chapter 18, Problem 46E

Interpretation Introduction

Introduction: The relation between enthalpy$\left(\Delta H_{rxn}^{\circ }\right)$ , entropy$\left(\Delta S_{rxn}^{\circ }\right)$ and free energy change$\left(\Delta G_{rxn}^{\circ }\right)$ for the reaction is given as:

$\Delta G_{rxn}^{\circ }=\Delta H_{rxn}^{\circ }-T\Delta S_{rxn}^{\circ }$

If $\Delta G_{rxn}^{\circ }$comes out to be negative, the reaction is spontaneous at the given temperature and if it comes positive, the reaction is nonspontaneous at that temperature.