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Homework Help: Confusing question

  1. Jan 29, 2005 #1
    "Equal volumes of different ideal gases at the same temperature and pressure must contain:"

    A. The same number of atoms
    B. one mole of each gas
    C. The same amount of gas
    D. 6.022 x 10^23 particles of each gas

    Since it is not 24dm^3 of each gas, I can rule out B and D.

    After rearranging the gas equation:

    NRT/P = NRT/P

    N = N

    The molar ratios are equal, but i dont know which of A or C is correct since i dont see the difference.
  2. jcsd
  3. Jan 29, 2005 #2
    helium molecule contain one atom, hydrogen molecule contain two atom....
    and the N in your equation represent number of molecule....
    so the answer is....
  4. Jan 30, 2005 #3
    Thank you!
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