Skip to content

Course home

Sign up

8.1 Rates of reaction

EasyMediumHard
12345678910111213141516171819202122232425262728
Question 11

Measurements taken during a colour-changing reaction show a decrease of 56 colour units over a period of 16 s.

What is the average rate of decrease of the colour reading?

[1]
A

3.5 s per colour unit3.5\,\mathrm{s}\,\text{per colour unit}3.5sper colour unit

B

3.5 colour units s−13.5\,\text{colour units}\,\mathrm{s^{-1}}3.5colour unitss−1

C

896 colour units s−1896\,\text{colour units}\,\mathrm{s^{-1}}896colour unitss−1

D

0.29 colour units s−10.29\,\text{colour units}\,\mathrm{s^{-1}}0.29colour unitss−1

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.

Question bank