Question

what is different between gas and vapour​

Answer 1

The Internet tells….

A gas refers to a substance that has a single defined thermodynamic state at room temperature whereas a vapor refers to a substance that is a mixture of two phases at room temperature, namely gaseous and liquid phase.

In simple terms , we can point out three differences:-

1. A vapour has undergone a phase change while a gas did not. For example, nitrogen is gas in room temperature, but water is liquid. When water is heated, it undergoes a phase change and water vapour forms.

2. Gas is a state of matter while vapour is not.

3. A gas is a substance above its critical temperature but below its critical pressure, while a vapor is a substance above its boiling point temperature.

Hope it helps :)

Answer 2

gas has single defined thermodynamic state at room temperature whereas vapour has mixtures of phases at room temperature.

gas remains in solid start only where as vapour in both solid and liquid state