Question

$K_p$ is how many times equal to $K_c$ for the given reaction?
$N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right)$

• A. $\frac{1}{R^2{T}^2}$
• B. $R^2{T}^2$
• C. $\frac{R}{T}$
• D. $RT$

Answer 1

The correct option is A

$\frac{1}{R^2{T}^2}$

We know.

$K_p=K_c(RT{)}^{\Delta n}$

In the reaction, $\Delta n=2-(1+3)=-2$

$\therefore K_p=(RT{)}^{-2}\times K_c$

$=\frac{1}{R^2{T}^2}{K}_c$