heat the substance with an electric heater. the quantity of electrical energy can be used by a joulemeter, equals to the amount of heat supplied
What are the three ways in which heat energy can travel?
conduction, convection, radiation
Particles in liquid have different amounts of energy. The particles with the mose energy move the fastest. High energy liquid particles near the surface move so fast that they are able to break through the surface and escape into the air, forming gas.