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Speed of sound in mixture of gases

  1. Feb 13, 2015 #1
    I am trying to calculate the speed of sound in a mixture of 2 gases like oxygen an ozone.
    First step: I calculated ##\gamma_{eff}## of the mixture by first calculate the ##C_V## of mixture by using a formula $$C_V=\frac{n_1C_1 + n_2C_2}{n_1+n_2}$$

    Step 2: in the formula $$v=\sqrt{\frac{\gamma RT}{M}}$$, where M is molecular mass, which M should I use?or what will be the value of M here?
  2. jcsd
  3. Feb 13, 2015 #2
    The molar average, like Cv.

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