Chapter 17.6, Problem 8PE

Interpretation Introduction

Interpretation:

The standard free energy ($\Delta G$) value has to be calculated and equilibrium direction has to be identified for the given reaction.

Concept Introduction:

Equilibrium constant ($Keq$ ): A constant which can tell you which side equilibrium is favored under certain conditions.

Le chatelier’s principle: If a system at equilibrium is disturbed, the equilibrium moves in the direction which tend to reduce the disturbance and as a result of that achieves a new equilibrium position.

Equilibrium directions: If $Q>K$ than the reverse reaction must occur to reach equilibrium go left side.

If $Q<K$ than the forward reaction must occur to reach equilibrium go right side.

Free energy (Gibbs free energy) is the term that is used to explain the total energy content in a thermodynamic system that can be converted into work.  The free energy is represented by the letter $\text{G}$.  All spontaneous process is associated with the decrease of free energy in the system.  The standard free energy change ${\text{(ΔG}}^{\text{°}}{}_{\text{rxn}})$

$\begin{array}{l}{\text{ΔG}}^{\text{0}}\text{=-RTln}\text{K}\\ \text{ΔG}=Freeenergy\\ {\text{ΔG}}^{\text{0}}=S\tan dard-statefreeenergy\\ \text{R}\text{=}\text{Gas}\text{Constant}(\text{0}\text{.0826}\text{l}\text{.atm/K}\text{.atm})\\ T=\text{Temprature}\text{273}\text{K}\\ \text{K=}\text{Equlibrium}\text{Constant}{\text{(K}}_{\text{P}}\text{and}{\text{K}}_{\text{C}}\text{)}\\ \ln =(-ve(\log )\text{State Function})\end{array}$