A solution that shows **positive** deviation from Raoult's law typical…

Question

A solution that shows **positive** deviation from Raoult's law typically has:

Accepted Answer

D. $\Delta_{mix}H > 0$ and $\Delta_{mix}V > 0$

Positive deviation arises when solute–solvent interactions are weaker than like–like, so mixing absorbs heat ($\Delta H > 0$) and the molecules are held less tightly, expanding the volume slightly ($\Delta V > 0$). Negative deviation gives the opposite signs.

Answer

$\Delta_{mix}H < 0$ and $\Delta_{mix}V > 0$

Answer

$\Delta_{mix}H = 0$ and $\Delta_{mix}V = 0$

Answer

$\Delta_{mix}H < 0$ and $\Delta_{mix}V < 0$