Essential Chemistry for IGCSE - Chemical Reactions (Section 3 - No. 14)
For the exothermic reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g), which conditions would favor the formation of SO3?
Increase temperature and decrease pressure.
Decrease temperature and increase pressure.
Increase temperature and increase pressure.
Decrease temperature and decrease pressure.
Explanation
Lowering the temperature favors the exothermic direction; increasing pressure favors fewer gas molecules.
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