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Homework Help: Volume Balance on concentration in a tank

  1. Apr 21, 2012 #1
    1. The problem statement, all variables and given/known data

    Hi. I am trying to do a volume balance on the concentration in a tank. I don't know how to find the output and just need some help. I have attached the image showing the question from the paper. Thanks.

    2. Relevant equations


    3. The attempt at a solution

    I drew a diagram showing the control surface. Stated that the independent variable is time and the dependent variable is x.

    I assumed that the concentration mixed instantaneously in the tank.

    Stated that the problem is unsteady state and that i was going to do a volume baalnce on the concentration in the tank.

    Took my basis: δt s.
    input = 0
    output = ...
    accumulation = V.δx

    I have no idea what the output value will be. I just need some help to find it.
    1. The problem statement, all variables and given/known data

    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
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