Question

Calculate the value of equilibrium constant of the reaction at $\text{22}{\text{7}}^{o}C$ , if the $\Delta G^o$ for the reaction $X+Y\rightleftharpoons Z$ is - 4.606 kcal . $(R=\text{2.0}cal.mo{l}^{-1}{K}^{-1})$

• A. 100
• B. 10
• C. 2
• D. 0.01

Answer 1

Answer: (A)

$\Delta G^o=-\text{2.303}RT\text{log}K$

$-\text{4.606}=-\text{2.303}\times \text{0.002}\times \text{500}\text{log}K$

$\text{log}K=2,K=\text{100}$ .