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
(d) Evaporation, solubility, diffusion, compression of gases
Evaporation is a phenomenon in which a liquid changes into its vapours under its boiling point. As the temperature is increased, the particles of the liquid gain the required kinetic energy and escape out as vapours.
Diffusion is a process in which particles move from higher concentration to lower concentration. As the temperature increases, the kinetic energy of the particles also increases. Hence, diffusion increases.
As the temperature increases, the particles of the gas begin to move faster, as the kinetic energy increases. Therefore the space between the molecules of the gas increases which results in the expansion of the gases.
Hence option (c) is correct.