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MHT CET202526 Apr 2025Morning ShiftChemistrySolutionsActual

What is the numerical value of osmotic pressure of 1 M urea solution if numerical value of osmotic pressure of 0.5 M urea solution is ' x '

Options

  1. Ax
  2. Bx 2
  3. C2 x
  4. D3 x

Correct answer

C. 2 x

Step-by-step solution

The osmotic pressure for a solution is determined by = iCRT , where i is the van't Hoff factor, C the molar concentration, R the gas constant, and T the absolute temperature. Since urea is a nonelectrolyte, i = 1 in both cases. For a 0.5 M urea solution, the osmotic pressure is given as x , so x = 1 0.5 RT and thus RT = 2x . For the 1 M solution, ₂ = 1 1 RT = 2x . The osmotic pressure of the 1 M urea solution is 2x .

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