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8.2 Heat energy changes in chemical reactions

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Question 8
F

What is activation energy?

[1]
A

The minimum energy colliding particles need in order to react

B

The energy released when a catalyst speeds up a reaction

C

The average kinetic energy of particles before they collide

D

The total energy stored in the products of the reaction

Markscheme

8.2 Heat energy changes in chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /8.2 Heat energy changes in chemical reactions

53 exam-style questions on Edexcel GCSE Chemistry 8.2 Heat energy changes in chemical reactions, covering 8.2.1 Exothermic and endothermic changes, 8.2.2 Bond breaking, bond making and overall energy change, 8.2.3 Calculating energy change from bond energies, and 8.2.4 Activation energy and reaction profiles. Each one has a worked solution and a mark scheme showing where the marks go.

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