Question

Favourable conditions for the $N{H}_3$ formation are high pressure and low temperature.
State whether the statement is True or False

Answer 1

$N_2+3H_2\rightleftharpoons 2N{H}_3+\text{23 kcal (exothermic)}$

$\Delta n=2-(1+3)=-2$.

Thus, the reaction proceeds through the decrease in the number of moles. At high pressure, the equilibrium will shift in the forward direction so as to nullify the effect of high pressure.

The reaction is exothermic in nature. At low temperatures, the reaction will shift in the forward direction so that more heat is produced which will nullify the effect of low temperature.

Thus, high pressure and low temperature favors the formation of ammonia. It is also favored by adding excess nitrogen and hydrogen or removing ammonia from the equilibrium mixture.

The given statement is true.