Mixtures of gases, such as argon and helium, much more likely to form an ideal solution than other combinations such as solids and liquids <u>because these gases experience little or no intermolecular forces between molecules or atoms.</u>
In chemistry, if a mixture possesses thermodynamic properties similar to those of composition of ideal mixtures, then it is called an ideal mixture or ideal solution.
In other words, a solution exhibiting enthalpy of solution i.e. ΔH(sol) = 0 is also called an ideal solution.
More the enthalpy of solution, the more 'ideal' the solution will be.
A solute and solvent having similar particle size forms an ideal solution.
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