A gas undergoes a thermodynamic cycle consisting of 3 processes beginning at an initial state where p1=1 bar, and V1= 1.5m3. The process are as follows: Process 1-2: compression with pv=constant to p2= 2 bar Process 2-3: W(2-3) =0, Q(2-3)= -150kJ and Process 3-1: W(3-1) = +50kJ. Neglecting KE and PE. Note answer should be in kPa. Find: Heat added Heat Rejected Cycle Net Work

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.