Essential Chemistry for IGCSE - Chemical Reactions (Section 4 - No. 18)
Consider the reaction: N₂O₄(g) ⇌ 2NO₂(g) ΔH > 0. What happens to the equilibrium when the temperature increases?
The equilibrium shifts to the left.
The equilibrium shifts to the right.
The equilibrium remains unchanged.
The reaction slows down.
Explanation
Since ΔH > 0, the forward reaction is endothermic. Increasing the temperature favors the endothermic (forward) reaction.
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