The kinetic energies of water particles in three vessels $A, B$,and $C$ are $E_A, E_B$,and $E_C$ respectively,where $E_A > E_B > E_C$. Arrange the temperatures $T_A, T_B$,and $T_C$ of the water in the three vessels in increasing order. Provide a reason for your answer.

Classify the following processes into osmosis or diffusion:
$(a)$ Swelling up of a raisin on keeping in water.
$(b)$ Spreading of virus on sneezing.
$(c)$ Earthworm dying on coming in contact with common salt.
$(d)$ Shrinking of grapes kept in thick sugar syrup.
$(e)$ Preserving pickles in salt.
$(f)$ Spreading of smell of cake being baked throughout the house.
$(g)$ Aquatic animals using oxygen dissolved in water during respiration.

$A$ rubber band can change its shape on stretching. Will you classify it as a solid or not? Justify your answer.

What is the effect of the following on the rate of diffusion?
$(i)$ Temperature
$(ii)$ Density of liquid

Why do gases show high compressibility?

Why does perspiration keep our body cool?