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Question 7: a quantity of argon is contained in a 3 litre tank at 200 kPa and 27C. A valve on the tank is

Question 7: a quantity of argon is contained in a 3 litre tank at 200 kPa and 27C. A valve on the tank is opened and some of the gas can escape. After a third of the gas has disappeared, the valve is closed again. The pressure is still 100 kPa. What is the final temperature of the gas? A: T

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