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2 difference between ideal solution and …

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2 difference between ideal solution and non ideal solution
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Sia ? 4 years, 6 months ago

Ideal solution Non-ideal solution
1. It obeys Raoult’s law to the furthest extent possible. 1. Does not obey Raoult’s law.
2. The molecular attractions between solute and solvent particles are the same as that between solvent-solvent particles. 2. The molecular attraction is different between solute-solvent particles and that between solvent-solvent particles.
3. The proportion of solvent particles that change into their vapour forms remains unchanged even when solute particles are added.4. The liquid and vapour form of the solvent always remain in a dynamic equilibrium. 3. The vapour pressure of solvent significantly decreases when solute particles are added to the solvent.4. The equilibrium is quite disturbed because of the various forces of nature at play.
5. As more and more solute particles are added to the solution, there is a gradual decrease in vapour pressure, which if plotted in a graph gives a straight line. 5. The decrease in vapour pressure is not in a linear manner.
6. Ideal solutions can be converted into non-ideal solutions when the solute particles of different dimensions are put together in the solution. 6. Non-ideal solutions approach the properties of the ideal solutions when they are in extremely diluted conditions.
7. When two ideal solutions are mixed, there is no change in enthalpy or volume of the solution. 7. When two non-ideal solutions are mixed, the change in volume and enthalpy is very significant.
8. For example solutions of benzene-toluene, n hexane- n heptane and ethyl bromide-ethyl iodide. 8. For example solutions of sugar-water, alkane and kerosene etc.
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