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Question

Liquids A and B forms an ideal solution. Then:

A
the enthalpy of mixing is zero
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B
the entropy of mixing is zero
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C
the free energy mixing is zero
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D
the free energy as well as the entropy of mixing are zero
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Solution

The correct option is A the enthalpy of mixing is zero
Solution:- (A) The enthalpy of mixing is zero
For ideal solutions, the solvent-solvent and solute-solute intermolecular forces are approximately as strong as the solvent-solute interaction, and thus the enthalpy of mixing is zero.

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