Q.

If liquid A and B form ideal solutions

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the enthalpy of mixing is zero

the entropy of mixing is zero

the free energy of mixing is zero

the free energy as well as entropy of mixing are each zero.

answer is A.

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Detailed Solution

An ideal solution is the one in which ,A - B interactions are equal to that of A - A and B - B interaction.No new attractions (or) repulsions are developed between A and B. No heat is released (or) absorbed, No expanisions (or) contractions , But due to mixing of A & B (whether ideal or nonideal), randomness always increases,formation of an ideal or nonideal sol. is always spontaneous,

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