A-LevelChemistryEquilibria9701/12 · May/June 2022 · Q131 Mark
A synthesis for methanol is shown. CO₂(g) + 3H₂(g) ⇌ CH₃OH(g) + H₂O(g) ΔH = −49 kJ mol⁻¹ Which conditions would produce the greatest yield of methanol at equilibrium?
Ahigh pressure, 80 °C
Bhigh pressure, 20 °C
Clow pressure, 80 °C
Dlow pressure, 20 °C
✓ Correct answer
B: high pressure, 20 °C
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