1.Solution and Colligative properties
medium

$A$ અને $B$ નુ મિશ્રણ $-ve$ વિચલન ત્યારે દર્શાવે જ્યારે .....

A

$\Delta {V_{{\rm{mix}}}} > 0$

B

$\Delta {H_{{\rm{mix}}}} < 0$

C

$A-B$  આંતરક્રિયા $  A-A$  અને $B-B$  આંતરક્રિયા કરતાં નિર્બળ હોય છે

D

 $A-B$ આંતરક્રિયા $A-A $ અને $B- B $ આંતરક્રિયા કરતાં પ્રબળ હોય છે

(AIEEE-2002)

Solution

In a mixture component $A$ and component $B$ Shows negative Deviation as, $\Delta V _{\text {mixing }}\,<\,0$

i.e. For Negative Deviation, $\Delta V _{\text {mixing }}= O , \Delta H _{\text {mixing }}=- ve$

Because, the forces of attraction between components $A$ and $B$ is greater.

Due to that the tendency of escaping of molecules $AB$ from solution becomes less than that of pure liquids.

$A – B$ attractive forces is greater than $A – A$ and $B – B$ attractive forces.

Standard 12
Chemistry

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