# Thermodynamics Problems

A closed vessel containing 0.06m^3 at air at 40 atmospheres and 40 degrees Celsius is connected with another closed vessel containing 1.35 kg of argon at 7 atmospheres. When the valve separating these vessels is opened, the pressure of the mixture is 18 atmospheres and its temperature is 30 degrees Celsius. Determine the volume of the vessel containing the argon and the temperature of the argon prior to mixing.

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