Engineers compare two catalysts for the same industrial reaction at the same temperature. The activation energy for the pathway provided by each catalyst is shown in the table.
| Catalyst | Activation energy in kJ/mol |
|---|---|
| J | 95 |
| K | 60 |
What does this show?
A greater fraction of particle collisions are successful with catalyst K than with catalyst J
The overall energy change is larger with catalyst K than with catalyst J
The product has a lower energy level with catalyst K than with catalyst J
Catalyst K transfers more kinetic energy to reacting particles than catalyst J
127 exam-style questions on AQA GCSE Chemistry 6.1 Rate of reaction, covering 6.1.1a Calculating rates of reactions, 6.1.1b Gradient of a tangent as rate, 6.1.2 Factors which affect the rates of chemical reactions, 6.1.3 Collision theory and activation energy, and 6.1.4 Catalysts. Each one has a worked solution and a mark scheme showing where the marks go.