Question

What is the value of the equilibrium constant for the following reaction if the equilibrium concentrations of nitrogen, hydrogen, and ammonia are 1 M, 2 M, and 15 M, respectively?
$N_2\left(g\right)+3H_2\left(g\right)\leftrightharpoons 2{NH}_3\left(g\right)$

• A. 0.035
• B. 7.5
• C. 28
• D. 380

Answer 1

The correct option is C 28

The given reaction is :-

$N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2{NH}_3\left(g\right)$

$\therefore K_C=\frac{{\left[{NH}_3\right]}^2}{\left[N_2\right]{\left[H_2\right]}^3}$

$=\frac{15\times 15}{1\times 2\times 2\times 2}=28.125$