Q. Which of the following is correct for the reaction? $N_{2}(g) + 3H_{2}(g) \rightleftharpoons 2NH_{3}(g)$
A) $K_{p} = K_{c}$
B) $K_{p} < K_{c}$
C) $K_{p} > K_{c}$
D) Pressure is required to predict the correlation
Explanation
(b)
$N_{2}(g) + 3H_{2}(g) \rightleftharpoons 2NH_{3}(g)$
$\mathrm{\Delta}n = n_{p} - n_{r}$
$= 2 - 4$
$= - 2$
$\therefore$ $K_{p} = K_{c}(RT)^{- 2}$
or $K_{p} = \frac{K_{c}}{(RT)^{2}}$
$K_{p} < K_{c}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.