1.1 The particle model

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Question 22

A sample of a pure substance is heated at a steady rate. The table shows how its temperature changes as energy is transferred to it.

Energy transferred in kJ	Temperature in °C
0	18
2	26
4	34
6	42
8	42
10	42
12	50
14	58

Use the data to explain what happens to the energy transferred while the substance melts, and why this is not fully represented by a particle diagram.

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Markscheme

1.1 The particle model Questions

GCSE
Chemistry
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.

Question bank·1.1 The particle model