Question

Why does the temperature of a substance remain constant during its melting point or
boiling poin

Answer 1

Answer:

The 'temperature of a substance'remains constant during its melting and boiling point because the change in any state of matter as n solid to liquid or the liquid to a gas involves crossing the 'latentheat of fusion' which causes a change in the intermolecular spacing of the molecules in thesubstance.