Question

The formation of ammonia by Haber's process is favored by high pressure.

• A. low pressure
• B. high pressure
• C. not depend pressure
• D. none of these

Answer 1

The correct option is B high pressure

The formation of ammonia by Haber's process is. favored by high pressure.
$N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right)$
$\Delta n=2-(1+3)=2-4=-2$
Since the reaction occurs with decrease in the number of moles of gaseous species, high pressure will shift the equilibrium towards right so as to nullify the effect of increased pressure. This is as per Le chatelier's principle.
Thus more ammonia will b formed.