How do you calculate the density of a solid or liquid?
Do solids have high or low densities?
- Solids generally have high or very high densities. Liquids generally have high densities. Gases generally have very low densities. Mixtures containing substances with different densities will form vertical layers, where:
What happens to the density of a solid when it melts?
- It melts when it changes from the solid state to the liquid state. The particles remain close together, so there is usually only a small increase of volume. The same mass of liquid will have slightly greater volume than the solid. As density equals \\ (\\frac { ext {mass}} { ext {volume}}\\), the liquid will have slightly lower density.
What does it mean if the density of a substance is low?
- Thus a relative density less than one relative to water means that the substance floats in water. The density of a material varies with temperature and pressure. This variation is typically small for solids and liquids but much greater for gases.
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