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    brijmohan123456's Avatar
    brijmohan123456 Posts: 41, Reputation: 1
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    #1

    Jan 4, 2013, 06:01 AM
    kinetic gas equation?
    the kinetic gas equation given on the basis of kinetic theory of gases is;
    PV=(mnu^2)/3
    where P=pressure exerted by gas
    V=volume of gas
    m=mass of each molecule of gas
    u=root mean square.
    Here can anyone just tell me that m i.e mass of each molecule of gas is in amu or in grams
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jan 4, 2013, 06:50 AM
    Given the formula:



    If you work the units you will see that m must be units of mass - in grams, or Kg, or whatever to make the result turn out in the units of pressue you desire. For example if n is in particles per cubic meter, m in Kg, and in meters/second, the pressure P will be in units of N/m^2, or pascals.
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