CBSE Class 11-science Answered
What is the difference between a vapour and a gas?
Asked by Ankit Jatiya | 30 Sep, 2014, 09:24: AM
Expert Answer
A vapour is a substance which experiences a phase change while gas does not.
A substance is called as in vapour state when it is in solid or liquid state at room temperature. That means its natural state of matter is solid or liquid. The natural state of matter for a gas is gas.
For example, steam is vapour because it is in liquid state at room temperature. N2, O2 are gases as they are in gaseous state at room tempearture.
Answered by Prachi Sawant | 30 Sep, 2014, 10:30: AM
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