Q. A non-ideal solution was prepared by mixing 30 mL chloroform and 50 mL acetone. The volume of mixture will be
A) $>$80 mL
B) $<$80 mL
C) =80 mL
D) ≥80 mL
Explanation
(b)
Chloroform and acetone form a non-ideal solution, in which A…B type interaction are more than A…A and B…B type interactions due to H-bonding. Hence, the solution shows negative deviation form Raoult’s law. i.e.,
$\ \ \bigtriangleup V_{mix}$=-ve,
$\bigtriangleup H_{mix}$=-ve,
$\therefore$ Total volume of solution = less than (30+50)mL
or <80mL
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.