Two gases react together. The pressure is increased at constant temperature, and the rate of reaction increases.
What is the effect of increasing the pressure on the collisions between the gas particles?
Collision energy increases and collision frequency increases.
Collision energy increases and collision frequency does not change.
Collision energy does not change and collision frequency increases.
Collision energy does not change and collision frequency does not change.
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.