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Really fast problem

  1. Feb 24, 2005 #1
    i know this probably sounds really stupid but how do i convert 20mm of gas into pascals?
  2. jcsd
  3. Feb 24, 2005 #2
    Pa has units of [itex]N/m^2[/itex] thus you need a little more info to convert 20mm of gas to pascals.
  4. Feb 24, 2005 #3
    [itex] p = h \rho g [/itex], when you use SI units in the RHS, P is in N/m^2. You need to know the density of the gas. g is the accelaration of gravity.
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