Question

what is the difference between a gas and a vapour?

Answer 1

gas and vapour are commonly used as synonyms.however a vapour is a specific type of gas. a vapour is a gas whose molecules gained energy and vaporized from a substance who at room temperature is either
a soild or liquid.an exam is water,water is a liquid at room temperature,so when it is became a gas it is referred to as water vapor

Answer 2

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Explanation:

$\huge \underline \blue{Gas:}$

⍟Thesubstance which is in the gases phase and is above it critical temprature called as gas.

$\huge \underline \green{Vapour:}$

⍟A substance which is in the gaseous phase and below it's critical temprature is called as Vapour.

$\red{\text{Difference between gas and Vapour:}}$

⋙ Vapour can be liquify simply by increasing pressure, while gas cannot vapours also exerts a pressure like a gas.