Question

For the reaction $CO\left(g\right)+\left(1/2\right)O_2\left(g\right)\rightleftharpoons C{O}_2\left(g\right),K_p/K_c$ is

• A. $RT$
• B. $(RT{)}^{-1}$
• C. $(RT{)}^{-1/2}$
• D. $(RT{)}^{1/2}$

Answer 1

The correct option is C $(RT{)}^{-1/2}$

$△n=1-(1+\frac{1}{2})=1-\frac{3}{2}=-\frac{1}{2}$
$\therefore \frac{K_p}{K_c}=(RT{)}^{△n}=(RT{)}^{-1/2}$