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  4. An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?

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Q. An aqueous solution is $1.00$ molal in $KI$. Which change will cause the vapour pressure of the solution to increase?

AIPMTAIPMT 2010Solutions

Solution:

With addition of water, concentration decreases thus vapour pressure increases