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1.1 The particle model

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Question 5

An exhibition uses spheres to represent particles in a gas. A real particle has a diameter of 0.25 nm. In the exhibit, each sphere is 5.0 mm in diameter and there is a gap of 155 mm between the surfaces of neighbouring spheres. Every length is represented using the same scale.

What is the typical distance between the centres of neighbouring real particles?

[1]
A

7.75 nm

B

8.0 nm

C

31 nm

D

40 nm

Markscheme

1.1 The particle model Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 The particle model

93 exam-style questions on OCR GCSE Chemistry 1.1 The particle model, covering 1.1.1 The particle model and changes of state and 1.1.2 Limitations of the particle model. Each one has a worked solution and a mark scheme showing where the marks go.

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