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-   -   Find pressure from temperature and moles (https://www.askmehelpdesk.com/showthread.php?t=445153)

  • Feb 9, 2010, 06:48 PM
    bimbot2011
    Find pressure from temperature and moles
    Can you find the Pressure (kPa) in a gas when you know the number of moles and the absolute temperature?
  • Feb 10, 2010, 01:02 PM
    harum

    pV=nRT, this is the equation of state for an ideal gas. You can see that you also need to know the volume of the gas, then you can calculate the pressure:

    p = nRT/V
  • Feb 16, 2010, 07:51 AM
    Unknown008

    If, you know the pressure of that gas and that amount of moles at a certain temperature, you can use a shortcut.



    Say, one mole of a gas exert a pressure of 101600 Pa at 298 K. You need to find the pressure at 273 K.

    So, you get:



    Solve and you're done.

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