All three states of matter (solid, liquid and gas) expand when heated. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

How much does gas expand when heated?

Gasoline does expand and contract a little depending on its temperature. When gasoline rises from 60 to 75 degrees F, for instance, it increases in volume by 1 percent while the energy content remains the same.

What happens to gas when heated up?

When a substance is heated it's molecules move faster. ... As the water gets hotter its molecules begin to move until the water is boiling. When gases are heated the same thing happens. As gas is heated up the amount of space the gas takes up increases.