In the Haber process, N2 + 3H2 forms 2NH3 (reversible). What is the effect of increasing the pressure on the position of equilibrium?
Answer and explanation
Correct answer: B. It shifts to the right, making more ammonia
- Step 1: Left side has 1 + 3 = 4 moles of gas and the right side has 2 moles of gas.
- Step 2: Higher pressure favours the side with fewer gas molecules, which is the right.
- Step 3: So more ammonia forms.
Answer
It shifts to the right, making more ammonia.
Why not the others: The left side has more gas molecules, so higher pressure does not favour it, the position does change when the numbers of gas molecules differ, and the reaction does not stop.
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