Question

please answer fast...........
what is vapour??

Answer 1

In term of physics, As we know that vapour or vapour is a substance in the gas phase at a temperature lower than its critical temperature, which means that the vapor can be condensed to a liquid by increasing the pressure on it without reducing the temperature. A vapor is different from an aerosol. 

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Answer 2

A substance diffused or suspended in the air, especially one normally liquid or solid is called vapour.