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Osmotic Pressure

At 300 K, t...

Question

At $300 K$ , two solutions of glucose in water of concentration $0.01 M$ and $0.001 M$ are separated by semipermeable membrane. Pressure needs to be applied on which solution, to prevent osmosis? Calculate the magnitude of this applied pressure?

A

P = 0.11 a t m

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B

P = 0.22 a t m

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C

P = 0.33 a t m

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D

P = 0.44 a t m

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Solution

The correct option is B $P = 0.22 a t m$
The pressure required, $Δ π = Δ C R T = (0.01 - 0.001) \times 0.08206 \times 300 = 0.22 a t m$

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