Question

The solution showing positive deviation.

• A. Have $\Delta$V(mixing) $=+$ve
• B. Have $\Delta$H(mixing) $=-$ve
• C. Form maximum boiling azeotropes
• D. Have lower vapour pressure of each component in the solution than their pure vapour pressure

Answer 1

The correct option is A Have $\Delta$V(mixing) $=+$ve

For solutions showing positive deviation from Raoult's law,

$\Delta V_{mix}>0$ and $\Delta H_{mix}>0$ and it forms a minimum boiling azeotrope.