Calculate the velocity of sound in a mixture of oxygen, nitrogen and argon at \( 0^{\circ} \math...

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Calculate the velocity of sound in a mixture of oxygen, nitrogen and argon at \( 0^{\circ} \mathrm{C} \) when their masses are in the ratio \( 2: 7: 1 \). The molecular weights of gases are 32, 28 and 40 respectively.
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