Question

As per Braun's principle, yield of Ammonia will be more in Haber's process under ______, conditions ($L=$ Low; $H=$ high; $T=$ Temp; $P=$ Pressure)

• A. $LT;LP$
• B. $LT;HP$
• C. $HT;HP$
• D. $HT;LP$

Answer 1

The correct option is A $LT;LP$

The manufacture of $N{H}_3$ by Haber's process is given as

$N_2\left(g\right)+{3H}_2\left(g\right)\rightleftharpoons {2NH}_3\left(g\right)△6H°=-92.4$

so, it is an exothermic reversible reaction and occurs with decrease in volume.

so, the low temperature will favour the forward reaction which is exothermic in nature

and since the reaction occurs with a decrease in volume .so, high pressure will favour the formation of of$N{H}_3$.