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MHT CET202124 Sep 2021Evening ShiftChemistrySolutionsActual

Vapour pressure of solution and of pure solvent are P ₁ and P ₁ ^0 respectively. If P₁ P₁^0 is 0.15 , find the mole fraction of solute.

Options

  1. A0.66
  2. B0.85
  3. C0.15
  4. D0.33

Correct answer

B. 0.85

Step-by-step solution

aligned & P ₁^0- P ₁ P ₁^0 = mole fraction of solute & 1- P ₁ P ₁^0 = x _ solute & x _ solute =1-0.15=0.85 aligned

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