Essential Chemistry for IGCSE - Chemical Reactions (Section 1 - No. 32)
In the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g) ΔH < 0, which of the following conditions would favor the production of SO3?
Increasing the pressure.
Increasing the temperature.
Adding a catalyst.
Removing SO3 from the system as it forms.
Explanation
Increasing pressure favors fewer moles of gas. Removing product drives reaction forward.
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