What is the reason for a substance to change from solid to liquid state ?

Do all substances change from solid to liquid and liquid to gas on heating ? Explain.

The process in which a substance changes directly from solid to gaseous form and vice-versa is called……..

Can you think of any material other than ice that goes from solid to liquid, liquid to gas (vapour) ?

.............. is the amount of heat energy required to change 1 kg of solid into liquid at its melting point.

What term is used to describe the phase change of a solid to a liquid?

What is the term used to describe the phase change of a liquid to a gas?

What is the term used to describe the phase change as a liquid becomes a solid ?

Which of the following relationships is correct for a reaction involving both reactants and products both in either solid or liquid state?

Is rubber band solid or liquid ? why?