Recent content by rbarngrover

  1. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    ahh think I have it now with x = .896 m and y = .907 m. May i ask what made you think of coming up with two equations like that?
  2. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    well wait is this what u meant... since total volume has to equal .027 m^3 i can write equations in terms of x and y as .027 = (.02)x + (.01)y then use pressures equal so that rho(g)x +Ma(g)/Aa = Rho(g)y + Mb(g)/Ab from these two equations solve?
  3. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    I still not sure how this will work, But if i understand correctly... Make tank A height x and Tank B height Y. Then Tank B = y = x - .3. is that what your talking about? then Pressure tank A = x and Pressure tank B = y per say then x = y + difference between two pressures due to the pistons...
  4. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    Once valve is opened the two tanks should go to equilibrium pressure wise. Intuitively the volume from tank a would rush into tank B till equilibrium is reached.
  5. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    DIagram of problem OK, I sketched a diagram that would represent the problem and have it as an attachment.
  6. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    Yes, that area would be the area of the respective cylinders and the pistons form upper bound of the tank so they add to pressure. I think it might help to say that the bases of each cylinder are on the same level if that helps. before the tank valve is open the following equations determine...
  7. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    If need be i can draw and scan a diagram of the problem
  8. R

    Thermodynamics Problem: Calculating Piston Heights in Connected Oil Tanks

    Two tanks filled with oil with density 860 kg/m3 are connected by a valve. Tank A has piston with 2.2 kg mass, cross sectional area of .02 m^3 and is suspended 1 m from the base of the tank. Tank B has a pistion mass of 1 kg, with cross sectional area .01 m^2 and is suspended .7m. when the...
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