Question

If liquids A and B form an ideal solution

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

Answer 1

The correct option is D The enthalpy of mixing is zero

For the ideal solution, $\Delta H=0,$ $\Delta V=0$
The no. of $F{e}^{3+}=\times 4=2$
\therefore molecular formula of given spinel structure is $ZnF{e}_2{O}_4$