Essential Chemistry for IGCSE - Chemical Reactions (Section 1 - No. 34)
Consider the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g) ΔH < 0. What effect will decreasing the temperature have on the equilibrium?
Shift the equilibrium to the left.
Shift the equilibrium to the right.
Have no effect on the equilibrium.
Slow down the reaction.
Explanation
Decreasing the temperature favors the exothermic reaction.
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