Question

Why liquid is said to be volatile?

Answer 1

A substance is said to be volatile if it boils at a low temperature, changing from the liquidto the gas phase. Substances that are gases at room temperature are extremely volatile: they have high volatility. They can only be seen as liquids when exposed to low temperatures or high pressures.

Answer 2

because they can be converted to vapour phase by applying less temp externally, or even at room temp