Physics
Do all the molecules of a liquid take part in evaporation? If not, explain your answer.
Heat Energy
47 Likes
Answer
No, all the molecules of a liquid do not take part in evaporation. Only the molecules on the surface of the liquid take part in evaporation.
In evaporation, some molecules near the surface of the liquid acquire sufficient kinetic energy by collisions with the other molecules, to reach the surface. These molecules absorb heat from the surroundings to escape out in space forming vapours of the liquid. Hence, only the molecules on the surface of the liquid take part in evaporation.
Answered By
30 Likes
Related Questions
Distinguish between liquid and vapour (or gas) states of matter on the basis of the following factors:
(a) Arrangement of molecules
(b) Inter-molecular separation
(c) Inter-molecular force and
(d) Kinetic energy of molecules
What is evaporation? Explain it on the basis of molecular motion.
No heat is supplied to a liquid during evaporation. How does then the liquid change into its vapour?
Comment on the statement 'Evaporation is a surface phenomenon'.