According to Le Chatelier's principle, what happens to the equilibrium N2 + 3H2 ⇌ 2NH3 (exothermic) when the pressure is increased?
Answer and explanation
Correct answer: B. It shifts towards ammonia
- Step 1: Higher pressure favours the side with fewer gas molecules: 2 on the right against 4 on the left. Answer: It shifts towards ammonia. Why not the others: It shifts towards nitrogen and hydrogen, It does not change and It stops don't fit.
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