Question

Why does temp.of a substance remain constant during its melting point or boiling point.

Answer 1

Answer:

Explanation: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 'latent heat of fusion' which causes a change in the intermolecular spacing of the molecules in the substance

Answer 2

Answer:

change In the intermolecular space of molecules