Q.

At 10°C, the osmotic pressure of urea solution was formed to be 500 mm. The solution is diluted 'x' times and the temperature raised to 25°C when the osmotic prssure was noticed to be 105.3mm, then 'x' is

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answer is C.

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Detailed Solution

I(before dilution) II(after dilution) π1= 500mm π2= 105.3mmT1 = (10+273)K T2 = (25+273)KV1 = 1 lit V2 = x litthe amount of urea remains constant , Wt. and GMW of urea remain constantx=5the solution is diluted by 5 times

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