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8.1 Rates of reaction

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Question 64
F

In a sodium thiosulfate experiment, the time for a cross to disappear decreases from 80 s to 40 s. Using 1/t 1/t\,1/t as a rate measure, how does the rate change?

[1]
A

It halves

B

It stays the same

C

It doubles

D

It becomes four times smaller

Markscheme

8.1 Rates of reaction Questions

  1. GCSE
  2. /Chemistry
  3. /8.1 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.

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