Question

A solid X liquifies at 25degree celsius.

It again changes back to it's solid state at 20degree Celsius.

So, Do you agree with the statement? Justify your answer.

Answer 1

I am not agree with the given statement because solids have same melting and freezing point and in the given statement they said melting point is 25 degree and freezing point is 20 degree.The melting point is the temperature at which a solid is changed into a liquid by applying heat and pressure while the freezing point is the temperature at which a liquid is changed into a solid.Solids have the same melting and freezing points.