What is an ideal solution ?

Explanation

An ideal solution may be defined as the solution which obeys Raoult.s law over the entire range of concentration and temperature.
According to Raoult.s law, the vapour pressure of a volatile component `(p_A)` of the solutions is equal to the product of its mole fraction `(x_A)` in solution and vapour pressure in pure state `P_(A)^(0)`.
`p_(A) = p_(A)^(0) X_(A)`
The formation of ideal solution neither involve any change in enthalpy nor in volume. An ideal solution.
(i) should obey Raoults law i.e., `p_(A) = p_(A)^(0) x_(A) " and " p_(B) = p_(A)^(0) x_(B)`
(ii) `triangle _("mix") H = 0`
(iii) `triangle _("mix") V = 0`
In ideal solutions the solvent - solvent and solute - solute interactions are almost the same type as solvent - solute interactions.