A solid is warmed but does not melt or react. What happens to the movement of its particles?
They vibrate more vigorously about their positions
They stop vibrating and start shrinking
They move freely throughout the container
They stop moving as they absorb energy
48 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.