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17 February, 08:42

How can you determine the number of moles of a contained gas when the pressure, volume, and temperature are known values?

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  1. 17 February, 10:42
    Answer: use the ideal gas equation, PV = nRT


    The ideal gas equation permits you to determine one variable, P, V, n or T, when you know the other two variables.

    In this case, your are told you know P, V and T, so you can solve for n:

    n = PV / (RT)

    Remember this:

    R is the universal constant of gases, and you must use the adequate units.

    T is the temperature in absolute scales, i. e Kelvin.
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