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In the equilibrium:<br/>2SO₂(g) + O₂(g) ⇌ 2SO₃(g)<br/>which ...

In the equilibrium:<br/>2SO₂(g) + O₂(g) ⇌ 2SO₃(g)<br/>which condition would give the highest yield of sulfur trioxide:
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  • A High temperature and low pressure
  • B High pressure and low temperature
  • C Low pressure and low temperature
  • D Low pressure and high temperature
Correct Answer: Option B
Explanation:
The forward reaction is exothermic and produces fewer gas molecules. Low temperature favours the exothermic direction, while high pressure favours the side with fewer gas molecules. Both conditions increase sulfur trioxide yield.

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