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8.1 Rates of reaction

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Question 14
H

Two changes are made, separately, to a reaction between two gases.

Change 1: the temperature is increased, with the volume kept the same

Change 2: the gases are compressed into half the volume, at the same temperature

Effect X: the particles collide more often

Effect Y: a greater proportion of collisions have at least the activation energy

Which row describes the effects of each change?

[1]
A

Change 1 causes X and Y; Change 2 causes X only

B

Change 1 causes X only; Change 2 causes X and Y

C

Change 1 causes Y only; Change 2 causes X only

D

Change 1 causes X and Y; Change 2 causes X and Y

Markscheme

8.1 Rates of reaction Questions

  1. GCSE
  2. /Chemistry
  3. /8.1 Rates of reaction

54 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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