A) increase in pressure
B) increase in temperature
C) decrease in pressure
D) increase in the concentration of ammonia
Correct Answer: A
Solution :
\[{{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}+22\,kcal\] This is exothermic reaction. Number of product molecules are less than number of reactant molecule in this reaction, ie, volume is decreasing. Hence low temperature and high pressure are favourable condition for the formation of ammonia.
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