Question

 Consider the following reaction
equation$
In which direction, towards reactants and towards products, does the reaction shift if the equilibrium is stressed by each change? (i) H2 is added (ii) NH3 is added (iii) NH3 is removed.

19 Jan 2026
Answer :
Word Count : 184
The reaction ( \mathrm{N_2 + 3H_2 \rightleftharpoons 2NH_3} ) is a reversible reaction that obeys Le Chatelier’s principle, according to which an equilibrium system responds to an external stress in such a way as to counteract that stress and re-establish equilibrium. When hydrogen gas, ( \mathrm{H_2} ), is added to the system, the concentration of one of the reactants increases. The equilibrium responds by consuming the added hydrogen. To reduce
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