Chapter 23, Problem 23.37P

Interpretation Introduction

Interpretation:

Value of $\Delta G_{rxn}^o$ and $\Delta H_{rxn}^o$ has to be determined for the reaction $2\text{ HCl}\left(g\right){\text{ + F}}_{\text{2}}\left(g\right)\underset{}{\to }\text{2 HF}\left(g\right){\text{+ Cl}}_{\text{2}}\left(g\right)$. Also, the value of the equilibrium constant has to be calculated.

Concept Introduction:

The Gibbs free energy or the free energy change is a thermodynamic quantity represented by $\text{ΔG}$.

Value of $\Delta G_{rxn}^o$ can be calculated by the equation:

  $\Delta G_{rxn}^o\text{= }G°\left[\text{products}\right]-G°\left[\text{reactants}\right]$

Equilibrium constant of a reaction can be determined from the value of $\Delta G_{rxn}^o$ using the given formula,

  ${\text{ΔG}}_{rxn}^o=-\text{RT}\text{ln K}$

Enthalpy is the total amount of heat in a particular system.

Value of $\Delta H_{rxn}^o$ can be calculated by the equation:

  $\Delta H_{rxn}^o\text{= }H°\left[\text{products}\right]-H°\left[\text{reactants}\right]$