Two ideal monoatomic and diatomic gases are mixed with one another to form an ideal gas mixture. The equation of the adiabatic process of the mixture is PV γ = constant, where γ = 11 7 If n 1 and n 2 are the number of moles of the monoatomi

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Two ideal monoatomic and diatomic gases are mixed with one another to form an ideal gas mixture. The equation of the adiabatic process of the mixture is PV γ = constant, where γ = 11 7 If n 1 and n 2 are the number of moles of the monoatomic and diatomic gases in the mixture respectively, find the ratio n 1 n 2

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Correct answer: 3

γ m i x = n 1 C p 1 + n 2 C p 2 n 1 C v 1 + n 2 C v 2 11 7 = n 1 5 2 R + n 2 7 2 R n 1 3 2 R + n 2 5 2 R n 1 n 2 = 3

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