What are non-ideal solutions? Explain as to why non-ideal solutions deviate from Raoult’s Law.

What are non-ideal solutions? Explain as to why non-ideal solutions deviate from Raoult’s Law.
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Ans:- Non ideal solution are those which do not obey Raoult’s law. When the molecular interaction between solute molecules solvent. Solvent molecules is not same as the molecular interaction between solute & solvent molecules then deviotion occurs.
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Last Answer : Ans. It is the ratio of the product PV to nRT. Z = PV/nRT. For ideal gas its value is unity. Z < 1 indicates negative deviation i.e. gas is more compressible due predominance of attractive forces. Z > 1 indicates positive deviation i.e. gas is less compressible due predominance of repulsive forces.

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