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5.2 Controlling reactions

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Question 21
F

The reaction profile shows the same reaction with and without a catalyst.

image

What is the activation energy of the reaction with the catalyst?

[1]
A

40 kJ/mol40\,\mathrm{kJ/mol}40kJ/mol

B

60 kJ/mol60\,\mathrm{kJ/mol}60kJ/mol

C

100 kJ/mol100\,\mathrm{kJ/mol}100kJ/mol

D

120 kJ/mol120\,\mathrm{kJ/mol}120kJ/mol

Markscheme

5.2 Controlling reactions Questions

  1. GCSE
  2. /Chemistry
  3. /5.2 Controlling reactions

56 exam-style questions on OCR GCSE Chemistry 5.2 Controlling reactions, covering 5.2.1 Measuring and interpreting rate of reaction, 5.2.2 Factors affecting rate and collision theory, and 5.2.3 Catalysts, activation energy and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.

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