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Decomposition of non-volatile solute 'A'...

Decomposition of non-volatile solute 'A' into another non-volatile solute B and C , when dissolved in water follows first order kinetics as A `to` 2B + C . Vapour pressure of a solution in which 1 mole of A was dissolved in 180 g of water was found to be 20 mm of Hg after 12 hrs . What will the vapour pressure after 24 hrs ? [Given : Vapour pressure of `H_(2)O` at the given temperature = 24 mm Hg ]

A

19.2 mm of Hg

B

20 mm of Hg

C

10 mm of Hg

D

12 mm of Hg

Text Solution

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The correct Answer is:
C
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