A sealed container holds 0.025 kg of a liquid. The liquid is heated until it has all changed into a gas. The table shows the volume of the substance in each state.
| State | Volume (m3\mathrm{m^3}m3) |
|---|---|
| Liquid | 2.5 × 10-5 |
| Gas | 0.050 |
Calculate the density of the substance in each state.
Explain, in terms of particles, how the mass and the density of the substance change when the liquid changes into a gas.
87 exam-style questions on Edexcel GCSE Physics 14.1 Density and states of matter, covering 14.1.1 Kinetic theory and states of matter, 14.1.2 Density, and 14.1.3 Density and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.