Some of a gas condenses inside a sealed container. There is no leak or chemical change. Which statement describes the whole sample after condensation?
The same particles remain, but some are now close together in the liquid
There are fewer particles because liquid occupies less space
Every particle is smaller because the sample has cooled
New particles have formed to make the liquid
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.