Two identical mixtures undergo a reaction in which a blue colour fades. One mixture is kept at 15 ∘C15\,^\circ\mathrm{C}15∘C and the other is kept at 35 ∘C35\,^\circ\mathrm{C}35∘C. The colour disappears sooner from the mixture at 35 ∘C35\,^\circ\mathrm{C}35∘C.
Explain the difference in the rates of reaction.
122 exam-style questions on Edexcel GCSE Chemistry 8.1 Rates of reaction, covering 8.1.1 Measuring and interpreting rates of reaction, 8.1.2 Collision theory and the factors affecting rate, and 8.1.3 Catalysts and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.