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Exam question .

  1. May 14, 2006 #1
    exam question.....

    Equal masses of two liquids of density P and 2P are mixed together thoroughly. Whats the density of the mixture provided the total volume remains constant?

    1.4p/3 2. 3p/2 3. 3p 4.5p/3

    im getting 4p/3.....:frown: is that correct?
  2. jcsd
  3. May 14, 2006 #2


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    Staff: Mentor

    Correct -

    One has m/[itex]\rho[/itex] = V, so m/[itex]2\rho[/itex] = V/2, based on equal masses, so

    total mass = 2m, and total volume = V + V/2 = 3/2 V.
  4. May 14, 2006 #3
    thanx a lot.... exams is tomorrow.. pray for me guys! :D:D
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