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# TH10Exams - mae 214 J THERMODYNAMICS Summer 2010 EXAM 1 1...

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Two pounds of air is contined in a piston cylinder device at 70 F and 15 pisa. Heat is added and the piston rises. The piston touches stops which keep the piston from rising further after the volume has increased by 50%. Heat continues to be added to the air until the temperature reaches 200 F. How much heat is transferred and how much work is done during each of the processes? Sketch a temperature- volume property diagram of the process. Two kg or liquid water and 1 kg of water vapor are contained in a rigid tank at 150 kPa. How much heat is requires to increase the pressure to 300 kPa? Sketch a temperature-volume property diagram of the process. 200 cfm of carbon dioxide initially at 15 psia and 70 F is compressed at a constant temperature to 30 psia. Determine the work done and heat transferred in Btu/min. 1. 2. 3 . 4. For refrigerant R-134a complete the following table. Temperature,

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TH10Exams - mae 214 J THERMODYNAMICS Summer 2010 EXAM 1 1...

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