Identify the mixture that shows positive devi | vedclass

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(D) mixture shows positive deviation from Raoult's law when the solute-solvent intermolecular interactions are weaker than the solute-solute and solve

Vedclass · Accepted Answer

$(CH_3)_2CO + CS_2$

Vedclass · Answer

(D) mixture shows positive deviation from Raoult's law when the solute-solvent intermolecular interactions are weaker than the solute-solute and solvent-solvent interactions. In the mixture of $(CH_3)_2CO$ (acetone) and $CS_2$ (carbon disulfide),the dipole-dipole interactions between acetone molecules and the dispersion forces between $CS_2$ molecules are stronger than the interactions between acetone and $CS_2$ molecules. Consequently,the vapor pressure of the solution is higher than that predicted by Raoult's law. Therefore,$(CH_3)_2CO + CS_2$ exhibits positive deviation.

Identify the mixture that shows positive deviation from Raoult's law.

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