A chemical reactor contains a solid reactant and a liquid reactant. The reaction needs to continue at a low rate for several hours. An operator uses large pellets of the solid instead of the same mass of small granules. All other conditions are kept the same.
Explain why using large pellets keeps the rate of reaction low.
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.