Question

Which property is not found in ideal solution?

• A. $\Delta S_{mix}=0$
• B. $\Delta H_{mix}\ne 0$
• C. $\Delta V_{mix}\ne 0$
• D. All of these

Answer 1

The correct option is D All of these

In an ideal solution $\Delta S_{\text{mix}}$ cannot be zero
An ideal solution, then it is described as a homogeneous solution where the interaction between molecules of components (solute and solvents) is exactly the same to the interactions between the molecules of each component itself. So, the enthalpy of mixing of two components should be zero, i.e., $\Delta H_{\text{mix}}=0$.
Also there is no volume change on mixing and volume of the mixing is equal to zero that is, $\Delta V_{\text{mix}}=0.$ Adding further, it also signifies that there will be contraction or expansion of the volume while the mixing of two components is taking place.
The solute-solute interaction and solvent-solvent interaction are almost similar to the solute-solvent interaction.

Thus, the correct answer is (D).