Chemistry | TS EAMCET 2017 | Discussion Page

Which of the following conditions are correct for real solutions showing negative deviation from Raoult's law?

A) $\triangle H_{MIX} $<0; $\triangle V_{MIX} $ >0

B) $\triangle H_{MIX} $>0; $\triangle V_{MIX} $ >0

C) $\triangle H_{MIX} $>0; $\triangle V_{MIX} $ <0

D) $\triangle H_{MIX} $<0; $\triangle V_{MIX} $ <0

Option D

Conditions that are correct for real solutions showing negative deviation from Raoult's law are as follows

$P_{A} < P_{A} ^{0} X_{A} $ and $P_{B} <P_{A} ^{0} X_{B}$

$\triangle _{mix} H=-ve$

Dissolution is exothermic heating decreases solubility $\triangle_{mixing} V=-ve$

Discussion Forum