Chapter 16 - Thermodynamics: Directionality of Chemical Reactions - Questions for Review and Thought - Topical Questions - Page 737d: 69b

$K_{p}=5\times10^{17}$ When $\Delta_{r}G^{\circ}$ is negative, $K_{p}\gt1$

$\Delta _{r}G^{\circ}=-RT\ln K_{p}$ $\implies K_{p}=e^{-\frac{\Delta_{r}G^{\circ}}{RT}}=e^{-\frac{-100.97\times10^{3}\,J/mol}{(8.314\,Jmol^{-1}K^{-1})(298\,K)}}$ $=5\times10^{17}$ When $\Delta_{r}G^{\circ}$ is negative, $K_{p}\gt1$