Question

what happen when a solid is heated?

Answer 1

when a solid is heated kinetic energy of particles increase and started move faster
kinetic energy provide by heat overcomes the force of attractions between particles
at a certain temperature solid turns into liquid
further heating liquid turns into gases

Answer 2

Answer:

When a solid is heated the particles gain energy and start to vibrate faster and faster. ... Further heating provides more energy until the particles start to break free of the structure. Although the particles are still loosely connected they are able to move around. At this point the solid is melting to form a liquid.