Chapter 23, Problem 70AP

Interpretation Introduction

Interpretation:

The problem in the given procedureto obtain Magnesium is to be discussed.

Concept introduction:

The free energy of a system is defines as the difference of its enthalpy (H) and the product of the temperature (Kelvin) and the entropy (S) of the system.

G= H-TS

The standard free energy change of the reaction is the difference between the sum of the standard free energy change of products and the sum of the standard free energy change of reactants.

$\Delta {\text{G}}_{\text{rxn}}^{\circ }\text{=}{\displaystyle \sum \Delta {\text{G}}_{product}^{\circ }}-{\displaystyle \sum \Delta {\text{G}}_{reac\tan t}^{\circ }}$

For determining the equilibrium constant, the following expression is used as follows:

$\Delta G°=\text{R}T\ln K_{\text{p}}$

Here, R is the gas constant, $T$ is the temperature, and $K_{\text{p}}$ is the equilibrium constant.