The standard Gibbs energy change at 300 K for the reaction 2 A ⇌ B + C is 2494.2 J. At a given time, the composition of the reaction mixture is [ A…

The standard Gibbs energy change at $\displaystyle 300$ K for the reaction $\displaystyle 2 \mathrm{~A} \rightleftharpoons \mathrm{~B}+\mathrm{C}$ is $\displaystyle 2494.2$ J. At a given time, the composition of the reaction mixture is $\displaystyle [\mathrm{A}]=\frac{1}{2},[\mathrm{~B}]=2$ and $\displaystyle [\mathrm{C}]=\frac{1}{2}$. The reaction proceeds in the : $\displaystyle [R=8.314 \mathrm{~J} / \mathrm{K} / \mathrm{mol}, e=2.718]$