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MHT CET20244 May 2024Morning ShiftChemistrySolutionsActual

Calculate vapour pressure of a solution containing mixture of 2 moles of volatile liquid A and 3 moles of volatile liquid B at room temperature. ( P _ A ^ =420, P _ B ^ =610 ~mm Hg )

Options

  1. A600 mm Hg
  2. B570 mm Hg
  3. C534 mm Hg
  4. D480 mm Hg

Correct answer

C. 534 mm Hg

Step-by-step solution

aligned & x ₁= n ₁ n ₁+ n ₂ = 2 2+3 =0.4 & x ₂= n ₁ n ₁+ n ₂ = 3 2+3 =0.6 & P _ solution = P _ A ^0 x ₁+ P _ B ^0 x ₂ & =420 0.4+610 0.6 & =168+366 & =534 ~mm Hg aligned

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