Chemical Equilibrium — Easy JEE chemistry MCQ
For $N_2 + 3H_2 \rightleftharpoons 2NH_3 + \text{heat}$, the yield of $NH_3$ increases by:
- A. Increasing pressure and decreasing temperature
- B. Decreasing pressure and increasing temperature
- C. Increasing both pressure and temperature
- D. Decreasing both pressure and temperature
Solution
Forward reaction: decreases moles (4 → 2) and is exothermic.
High pressure favors fewer moles (forward). Low temperature favors exothermic (forward).