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8.2 Heat energy changes in chemical reactions

8.2 Heat energy changes in chemical reactions

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Question 19
F

Why should equal volumes and concentrations be used when comparing heat changes of two neutralisations?

[1]
A

So both reactions happen at the same rate as each other

B

So every reaction has the same activation energy

C

So both reactions reach the same final temperature

D

So the amounts reacting are the same, for a fair test

Markscheme

8.2 Heat energy changes in chemical reactions Questions

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

94 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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