CBSE Class 12 Chemistry 2022 Term 1 Paper

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Question : 9
Total: 55
Which of the following formula represents Raoult's law for a solution containing non-volatile solute?
Solution:  
Solution which have only one volatile components, The vapour pressure of volatile component in a given solution can be written by -
P1=x1P10
If we compare the equations for Raoult's law and Henry's law, (P=KHx), only proportionality constant KH differes from P10.
Thus,
Rault's law becomes a special case of Henry's law in which KH becomes equal to P10.
All other options are wrong for Roult's law.
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