Question

Liquids $A$ and $B$ forms an ideal solution. Then:

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

Answer 1

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.