Q. In which of the following reaction $K_{p} > K_{c}$?
A) $N_{2} + 3H_{2} \rightleftharpoons 2{NH}_{3}$
B) $H_{2} + I_{2} \rightleftharpoons 2HI$
C) $2SO_{3} \rightleftharpoons O_{2} + 2{SO}_{2}$
D) $PCl_{3} + Cl_{2} \rightleftharpoons {PCl}_{5}$
Explanation
(c)
For reaction, $2SO_{3} \rightleftharpoons O_{2} + 2{SO}_{2}$
Here, $\mathrm{\Delta}n_{g} = 3 - 2 = 1,\ ie,\ + ve$, thus, $K_{p}$ is more than $K_{c}\ \ \ \ \lbrack\because K_{p} = K_{c}(RT)^{\mathrm{\Delta}n_{g}}\rbrack$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.