Which one of the following sets of phenomena would increase on raising the temperature? (a) Diffusion, evaporation, compression of gases (b) Evaporation, compression of gases, solubility (c) Evaporation, diffusion, expansion of gases Evaporation, solubility, diffusion, compression of gases
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
- Soln:
Answer is c) Evaporation, diffusion and expansion of gases
Explanation:
Particles of matter are continuously moving as they possess kinetic energy. When temperature us raised particles of matter intermix with each other which is called diffusion.
Evaporation means conversion of liquid state into vapour state. When we increase temperature molecules move and vibrate so quickly that they escape into the atmosphere in the form of vapours.
Increase in temperature causes the molecules move faster this results in expansion of gases.
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