Chemistry · Oct / Nov 2024 · Paper 11 · Question 14

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?

1. AThe rate of the reaction decreases. | The activation energy, Ea, decreases.
2. BThe rate of the reaction decreases. | The activation energy, Ea, increases.
3. CThe rate of the reaction increases. | The activation energy, Ea, decreases.
4. DThe rate of the reaction increases. | The activation energy, Ea, increases.

As printed in the paper