Question

For the equilibrium $PCl _{5}( g ) \rightleftharpoons PCl _{3}( g )+ Cl _{2}( g )$ in a closed vessel, $K _{ p }$ is found to be double of $K _{ c }$. This is attained when:

(A) $T=2 K$

(B) $T=17.22 K$

(C) $T=24.36 K$

(D) $T =6.09 K$

Answer 1

When the equilibrium $PCl _{5}( g ) \rightleftharpoons PCl _{3}( g )+ Cl _{2}( g )$ in a closed vessel, $K _{ p }$ is found to be double of $K _{ c }$. This is attained when T = 24.36 K. 

So, The correct option of this question will be (C).