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Q3: A closed tank having a volume of is filled with 0.30 Ib of a gas. A pressure gage attached to the tank reads

Q3: A closed tank having a volume of is filled with 0.30 Ib of a gas. A pressure gage attached to the tank reads 12 psi when the gas temperature is 80 F. There is some question as to whether the gas in the tank is oxygen or helium. Which do you think it is? Explain how you arrived at your answer.

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