Question

what is difference between vapour and gas for class 9

Answer 1

A gas has one defined state at room temperature whereas a vapour is a substance that is in gaseous and liquid equilibrium at room temperature, at a given pressure. A gas can also refer to a single element of matter with its own unique physical and chemical properties, for example oxygen, nitrogen and neon.

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Answer 2

Hey friend,

● Difference between vapour & gas -
- Gases are normally present in gaseous state at room temperature while vapour is either liquid/solid phase at room temperature.
- Gases obey ideal gas equation while vapors don't.
- In gases evaporation is complete whereas in vapors evaporation is not completed.
- With change in temp & pressure gas remains in gaseous state. Vapour may condense/evaporate with change in conditions.



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