The osmotic pressure of 0.4% urea solution is 1.66 atm and that of a solution of sugar of 3.42% is 2.46 atm. When equal volumes of both the solutions are mixed then the osmotic pressure of the resultant solution will be?

Question

The osmotic pressure of 0.4% urea solution is 1.66 atm and that of a solution of sugar of 3.42% is 2.46 atm. When equal volumes of both the solutions are mixed then the osmotic pressure of the resultant solution will be?, 1.02 atm, 2.06 atm, 3.04 atm, 0.02 atm

MARKS App · Accepted Answer

π f = c 1 2 + c 2 2 RT As volume is doubled, concentration is halved ∴ π f = c 1 RT + c 2 RT 2 π 1 + π 2 2 = 1 .66 + 2 .46 2 = 2.06 atm.

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