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Problem 7 A system undergoes a thermodynamic cycle consisting of four processes in series. The table below provides some data, where the familiar sign convention for first-law analysis is adopted. The system is a closed system. Kinetic energy and potential energy effects can be neglected. a. Using first-law analysis and the energy balance for a cycle, find the missing values in the table. b. Determine whether the cycle is a power cycle or refrigeration cycle. c.Show that the net amount of energy transfer by heat, for the cycle, is equal to the net amount of energy transfer by work, for the cycle. Process AUkJ KJ WkJ 1-2 2-3 3-4 4-1 600 -600 1300 700 0 500 700

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Process :- 1-2 - Process- 3- 500-700 = △u By using Fi γ s t Low of thermodynamics en d state a*e

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