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Cylinder of compressed oxygen

  1. Jan 17, 2008 #1
    1. The problem statement, all variables and given/known data

    A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L and is filled to a pressure of 200 atm at 273 K. The maximum pressure the cylinder can hold is 1000 atm.
    The molar mass of Oxygen is 32 g/mol.
    Boltzmann's constant = 1.38×10-23 J/K
    Avogadro's constant = 6.02×1023 1/mol
    1 L = 1000 cm3 = 0.001 m3
    R = 8.31 J/mol K

    (a) Assuming that Oxygen is an ideal gas, what is the maximum temperature in Kelvin that the tanks can withstand before bursting?

    Temp = 1365K (no prob here)


    (b) What is the rms velocity of the oxygen molecules in the cylinder at it's maximum temperature?

    v = 1031.223 m/s (this is no prob also)


    (c) The contents of the cylinder is then entirely transfered to a partially filled holding tank of volume 10,000 L originally at presure 2 atm and 300 K. What is the new pressure in the holding tank at 300 K?
    P = atm
    I dont know where to start on this part, its totally confusing me. please help!


    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Jan 17, 2008 #2

    mgb_phys

    User Avatar
    Science Advisor
    Homework Helper

    PV = nRT where n is the number of moles
    Remember if you don't lose any gas this is conserved.
     
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