Q. In the reaction, $H_{2}(g) + I_{2}(g) \rightleftharpoons 2HI(g)$ . Which of the following is correct?
A) $K_{p} = K_{c}$
B) $K_{p} > K_{c}$
C) $K_{p} < K_{c}$
D) $K_{p} \geq K_{c}$
Explanation
(a)
For equation $H_{2}(g) + I_{2}(g) \rightleftharpoons 2HI(g),\$the value of
$\mathrm{\Delta}n = 2 - (1 + 1) = 0$
Hence, by using formulae $K_{p} = K_{c}(RT)^{\mathrm{\Delta}n}$
$K_{p} = K_{c}(RT)^{0}$
$K_{p} = K_{c}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.