Which one of the following sets of phenomena would increase in raising the temperature a Diffusion e...

Question

Which one of the following sets of phenomena would increase in 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

Accepted Answer

The answer is c Evaporation diffusion and expansion of gases Explanation Particles of matter are continuously moving as they possess kinetic energy When the temperature is raised particles of matter intermix with each other which is called diffusion Evaporation means the conversion of liquid state into the vapour state When we increase temperature molecules move and vibrate so quickly that they escape into the atmosphere in the form of vapors An increase in temperature causes the molecules to move faster this results in the expansion of gases

NCERT Exemplar Solutions Class 9 Science Solutions for Matter in our Surroundings - Exercise in Chapter 1 - Matter in our Surroundings