What is the effect of increasing pressure on the equilibrium of the reaction: 2N

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Question: What is the effect of increasing pressure on the equilibrium of the reaction: 2N2(g) + 3H2(g) ⇌ 2NH3(g)? (2021)

Options:

Correct Answer: Shift to the right

Exam Year: 2021

Solution:

Increasing pressure shifts the equilibrium towards the side with fewer moles of gas. In this case, it shifts to the right, producing more NH3.

What is the effect of increasing pressure on the equilibrium of the reaction: 2N2(g) + 3H2(g) ⇌ 2NH3(g)? (2021)

What is the effect of increasing pressure on the equilibrium of the reaction: 2N2(g) + 3H2(g) ⇌ 2NH3(g)? (2021)

Step 1: Identify the reaction: 2N2(g) + 3H2(g) ⇌ 2NH3(g).
Step 2: Count the number of gas molecules on each side of the reaction.
Step 3: On the left side (reactants), there are 2 moles of N2 and 3 moles of H2, totaling 5 moles of gas.
Step 4: On the right side (products), there are 2 moles of NH3, totaling 2 moles of gas.
Step 5: Understand that increasing pressure in a reaction favors the side with fewer gas molecules.
Step 6: Since the right side has fewer moles of gas (2 moles of NH3) compared to the left side (5 moles of N2 and H2), the equilibrium will shift to the right.
Step 7: This shift to the right means more NH3 will be produced.

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