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Why a mixture of carbon disulphide and a...

Why a mixture of carbon disulphide and acetone shows positive deviation from Raoult's law ? What type of azeotrope is formed in this mixture ?

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A mixture of carbon disulphide and acetone shows positive deviation. This is because intermolecular forces of attraction between carbon disulphide and acetone are weaker than between pure components. A minimum boiling azeotrope is formed at a specific composition.
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