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Homework Help: Pressure change from one box to another

  1. Dec 15, 2009 #1
    1. The problem statement, all variables and given/known data
    A .25L box at 1PSI is inserted into a 1L box at 5psi.
    The .25L box has a leak.
    The pressure of the 1L box at t=2sec. is 4.8psi

    A) How long will it take for the Pressure in Box 1 to equal the pressure in Box 2.
    B) What is the size of the leak in Box 2?




    2. Relevant equations
    PV=nRT
    1/2*density*velocity^2 + P1 = P2 [Bernoulli]
    P = Po e^-Ct [generic Pressure Decay] ?


    3. The attempt at a solution

    Stuck in a rut................ >=(.

    Note: this is not actually a true homework problem. In fact, it is a real-world problem for leak testing a product.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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