(a) Define Ideal and Non-ideal solutions and give one example of each. (b) Define Henry's law. Give two applications of Henry's law.

(a) Define Ideal and Non-ideal solutions and give one example of each.

1.	(a) Define Ideal and Non-ideal solutions and give one example of each. (b) Define Henry's law. Give two applications of Henry's law.
Answer» Solution :(a) Ideal solution. A solution is said to be ideal if it satisfies the following conditions : (i) It obeys Raoult.s law at all temperatures and concentrations. (ii) `Delta V_("(mix)") = 0 ` (ii) `Delta H_("(mix)") = 0` For example, Benzene + Toluene Non-ideal solution. A solution is said to be non-ideal if (i) it does not obey Raoult.s law at all temperatures and concentrations. (ii) `Delta V_(" (mix)")ne0 ` (iii) `Delta H_("( mix)")ne0` For example, Water + ETHYL alcohol (b) Henry.s law. It states that the MASS of the gas (m) dissolved in a given volume of the liquid at constant temperature is directly proportional to the pressure (P) of the gas in equilibrium with the liquid. `m prop P` (i) In preparing soda water drinks, carbon dioxide is dissolved in water under pressure and BOTTLE is SEALED under pressure. (ii) Deep divers use cylinder CONTAINING `O_2, N_2,` and He for respiration. ·