Question 11
HSubstance A reacts with substance B in an endothermic reaction. The figure shows a set of axes for a reaction profile.
Figure: A set of empty axes for drawing a reaction profile
a.[3]
Draw a reaction profile for this reaction on the figure. Label the reactants, the products and the activation energy.
b.[2]
Explain, in terms of the bonds in the reactants and in the products, why this reaction is endothermic.
5.1 Exothermic and endothermic reactions Questions
39 exam-style questions on AQA GCSE Chemistry 5.1 Exothermic and endothermic reactions, covering 5.1.1 Energy transfer during exothermic and endothermic reactions, 5.1.2 Reaction profiles, and 5.1.3 The energy change of reactions. Each one has a worked solution and a mark scheme showing where the marks go.