Reaction profiles are drawn for the same reaction using catalyst A and using catalyst B. The activation energy is lower with catalyst B. What does this show?
Catalyst B releases more energy to the surroundings
Catalyst B gives a greater yield of product than A
Catalyst B is used up more slowly than catalyst A
Catalyst B gives a faster rate of reaction than A
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.