Q49 / 180 · COMEDK 2017 · Chemistry
$\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftharpoons 2 \mathrm{NH}_{3}+$ Heat. What is the effect of the increase of temperature on the equilibrium of the reaction?
- Correct answerAEquilibrium is shifted to the left
- BEquilibrium is shifted to the right
- CEquilibrium is unaltered
- DReaction rate does not change
Solution
The given reaction, $\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftharpoons 2 \mathrm{NH}_{3}+$ Heat, is an exothermic reaction.
$\therefore$ According to Le-Chatelier's principle, on increase in temperature equilibrium is shifted to the left.
Hence, the correct answer is option: 'A'.