O-LevelChemistryRates of Reaction5070/11 · Oct/Nov 2024 · Q141 Mark
Two gases react together to produce a single product. The rate of the reaction is affected by an increase in pressure. The reaction is catalysed by platinum. Which row describes one effect on this reaction of increasing pressure and one effect on this reaction of adding platinum?
Aone effect of increasing pressure: The rate of the reaction decreases. one effect of adding platinum: The activation energy, Ea, decreases.
Bone effect of increasing pressure: The rate of the reaction decreases. one effect of adding platinum: The activation energy, Ea, increases.
Cone effect of increasing pressure: The rate of the reaction increases. one effect of adding platinum: The activation energy, Ea, decreases.
Done effect of increasing pressure: The rate of the reaction increases. one effect of adding platinum: The activation energy, Ea, increases.
✓ Correct answer
C: one effect of increasing pressure: The rate of the reaction increases. one effect of adding platinum: The activation energy, Ea, decreases.
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