Question

What conditions should an ideal solution satisfy?

Answer 1

1. Ideal solution: In simple words, the solution which obeys Raoult's law is called the Ideal solution.
2. Raoult's law is followed over the complete range of concentration.
3. These solutions are formed by the mixing of two components and the two components are identical in accordance with their molecular size, structure, and intermolecular forces.
4. The ideal solution must obey the Raoult's law i.e.${\mathrm{P}}_{\mathrm{solution}}={\mathrm{P}}_{\mathrm{solvent}}^0.{\mathrm{x}}_{\mathrm{mole}\mathrm{fraction}\mathrm{of}\mathrm{solute}}$
5. The composition of the volume of solute is equal to the solvent.
6. When a solute is dissolved in solvent there should be no exchange of heat.
7. The escaping tendency of solute and solvent will be equal to the pure liquid, meanwhile both solutions(pure and mixed) have the same escaping velocity.
8. The examples of an ideal solution that satisfies such conditions are as follows: Benzene$\left(C_6{H}_6\right)$ and Toluene$\left(C_7{H}_8\right)$, Chlorobenzene$\left(C_6{H}_5\mathrm{Cl}\right)$ and Bromobenzene$\left(C_6{H}_5\mathrm{Br}\right)$