Question

Which one is not equal to zero for an ideal solution

• A. $\Delta S_{m i x}$
• B. $\Delta V_{m i x}$
• C. $\Delta P=P_{o b s e r v e d}-P_{R a o u l t}$
• D. $\Delta H_{m i x}$

Answer 1

Answer: (A)

For an ideal solution $\Delta S_{m i x}>0$ as in order to maintain spontaneity $\Delta S_{m i x}$ must be positive. for ideal solution $\Delta V_{m i x}$ , $\Delta H_{m i x}$ and $\Delta P=P_{o b s e r v e d}-P_{R a o u l t}$ are zero.