Question

In which of the following reaction, the value of $K_{p}$ will be equal to $K_{c}$?

• A. $H_{2} + I_{2} \rightleftharpoons 2HI$
• B. $PCl_{5} \rightleftharpoons PCl_{3} + Cl_{2}$
• C. $2NH_{3} \rightleftharpoons N_{2} + 3H_{2}$
• D. $2SO_{2} + O_{2} \rightleftharpoons 2SO_{3}$

Answer 1

Answer: (A)

$n_{p} = n_{f}$ then $K_{p} = K_{c}$
where $n_{p}$ = number of moles of product
$n_{r}$ - number of moles of reactant