In an experiment in which molten naphthalene is allowed to cool, the cooling curve i n the figure was obtained. The temperature 80\(^o\)C is known as the 

agadido

3 years ago

Simple Explanation:

At melting point, Temperature is constant.

Toclay

5 years ago

But if u say molen naphthalene,it does not justapose the answer because when u are cooling a liquid but can't use melting.so definitely naphthalene must be a solid