Q. For the reaction, $C_{2}H_{4} + H_{2} \rightleftharpoons C_{2}H_{6}$ The correct relation is
A) $K_{p} = K_{c}$
B) $K_{p} = K_{c}\lbrack RT\rbrack$
C) $K_{p} = K_{c}\lbrack RT\rbrack^{- 2}$
D) $K_{p} = K_{c}\lbrack RT\rbrack^{- 1}$
Explanation
(d)
$C_{2}H_{2} + H_{2} \rightleftharpoons C_{2}H_{6}$
$K_{p} = K_{c}(RT)^{\mathrm{\Delta}n}$
$\mathrm{\Delta}n = 1 - 2 = - 1$
$K_{p} = K_{c}(RT)^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.