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1.1 The particle model

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Question 20

A science museum projects an animation of gas particles onto a large screen, showing each particle as a sphere. A real particle has a diameter of 0.18 nm, and the typical distance between neighbouring particle centres is 5.4 nm. On the screen, the gap between neighbouring particle surfaces must be 58 cm, with every length enlarged by the same factor.

What diameter should each sphere on the screen have?

[1]
A

2.0 cm

B

29 cm

C

10.4 cm

D

1.9 cm

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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