A-LevelChemistryReaction kinetics9701/12 · May/June 2022 · Q161 Mark
The Haber process for the manufacture of ammonia is represented by the equation shown. N₂(g) + 3H₂(g) ⇌ 2NH₃(g) ΔH = −92 kJ mol⁻¹ Which statement is correct about this reaction when the temperature is increased?
ABoth forward and backward rates increase.
BThe backward rate only increases.
CThe forward rate only increases.
DThere is no effect on the backward or forward rates.
✓ Correct answer
A: Both forward and backward rates increase.
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