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Question 2: A spring-loaded piston-cylinder device contains 2 kg of carbon dioxide. This system is heated from 180 kPa and 42°C to 740 kPa and 370°C. a) b) c) Draw the pressure-volume diagram of the problem Determine the total heat transfer.Comment about its sign. Determine the work done. Comment about its sign The properties of CO2 are R = 0.1889 kJ/kgk and Cv = 0.657 kJ/kgk www CO₂ Question 3: Related to the previous question, how could the direction of heat transfer be changed? Comment on this.
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Transcribed Image Text:Question 2: A spring-loaded piston-cylinder device contains 2 kg of carbon dioxide. This system is heated from 180 kPa and 42°C to 740 kPa and 370°C. a) b) c) Draw the pressure-volume diagram of the problem Determine the total heat transfer.Comment about its sign. Determine the work done. Comment about its sign The properties of CO2 are R = 0.1889 kJ/kgk and Cv = 0.657 kJ/kgk www CO₂ Question 3: Related to the previous question, how could the direction of heat transfer be changed? Comment on this.
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