Question

At $1000 \,K$, the value of $K_{p}$ for the reaction: $A(g) + 2B(g) \rightleftharpoons 3C(g) + D(g)$ is $0.05$ atmosphere. The value of $K_{c}$ in terms of $R$ would be:

• A. $20000\, R$
• B. $0.02\, R$
• C. $5 \times 10^{-5+} R$
• D. $5 \times 10^{-5} \times R^{-1}$

Answer 1

Answer: (D)

$K_{p} = K_{c} (RT)^{\Delta n} , \Delta n = 4 - 3 = 1$
$0.05 =K_{c} ^ R \times 1000$
$K_{C} = 5 \times 10^{-5} R ^{-1}$'