Question

in the figure below a piston is free to move and will not exit the cylinder. Initially the cylinder contains 2kg of air at 1.Sbar and 25°C Heat is transferred

to the air and the piston rises until it reaches the blocks, at which point the volume is twice the initial volume. More heat is added until the pressure inside the cylinder also doubles. Determine i.the work dene and ii.the amount of heat transfer for this process. Also show the process on a P-v diagram. b) Air operating in a closed cycle consists of the following processes. Process 1-2: Reversible adiabatic compression. Process 2-3: Coristant volume heat addition. Process 3-4: Constant pressure heat addition. Process 4-5: Reversible adiabatic expansion. Process 5-1: Constant volume heat rejection. Draw this cycle on a pressure volume diagram and annotate your diagram with as much information as possible.

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