Which of the following statements best explains the difference between a gas and a vapour?
-
A.
Unlike gases, vapours are liquids at room temperature -
B.
Unlike gases, vapour can easily be condensed into liquids -
C.
Unlike gases, vapour is readily converted into solids -
D.
Vapours are generally denser than gases
Correct Answer: Option B
Explanation
Vapour is the equilibrium state between the gases and liquid, and it can bounce back to its original form, liquid with constant temperature and pressure exerted on it.