1. Tardigrade
  2. Question
  3. Chemistry
  4. The percentage of ammonia obtainable, if equilibrium were to be established during the Haber process, is plotted against the operating pressure for two temperatures, 400° C and 500° C. Which of the following graph correctly represent the process?

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Q. The percentage of ammonia obtainable, if equilibrium were to be established during the Haber process, is plotted against the operating pressure for two temperatures, $400^{\circ} C$ and $500^{\circ} C$. Which of the following graph correctly represent the process?

Equilibrium

Solution:

$N _{2}( g )+3 H _{2}( g ) \rightleftharpoons 2 NH _{3}( g ) ; \Delta H < 0$

By Le Chatelier principle, higher pressure and lower temperature favour the forward reaction, i.e., higher $\%$ of $NH _{3}$.