Question

Select the incorrect statements about the plots of $lnK$ vs $\frac{1}{T}$.

• A. Linear with slope equal to $\frac{{\Delta G}^o}{R}$ and intercept $\Delta H$
• B. Curve
• C. Linear with slope $-\frac{{\Delta H}^o}{R}$ and intercept $\frac{{\Delta S}^o}{R}$
• D. Linear with slope $-\frac{{\Delta S}^o}{R}$ and intercept $\frac{{\Delta H}^o}{R}$

Answer 1

Answer: (A), (B), (D)

The correct options are
A Curve
B Linear with slope $-\frac{{\Delta S}^o}{R}$ and intercept $\frac{{\Delta H}^o}{R}$
D Linear with slope equal to $\frac{{\Delta G}^o}{R}$ and intercept $\Delta H$

$\Delta G^0=-RTln{K}_{eq}$

$-RTln{K}_{eq}=\Delta H^0-T\Delta S^0$

$\Delta G^0=\Delta H^0-T\Delta S^0$

$-RTln{K}_{eq}=\Delta H^0-T\Delta S^0$

In $K_{eq}=-\frac{\Delta H^0}{RT}+\frac{\Delta S^0}{R}$

Hence, option A, B and D are correct