Chemistry | TS EAMCET 2017 | Discussion Page

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

$\triangle H_{MIX}$ <0;

$\triangle V_{MIX}$ >0

$\triangle H_{MIX}$ >0;

$\triangle V_{MIX}$ >0

$\triangle H_{MIX}$ >0;

$\triangle V_{MIX}$ <0

$\triangle H_{MIX}$ <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 $\triangle_{mixing} V=-ve$

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