Argon is confined in a frictionless piston-cylinder device surrounded by the atmosphere. Initially, the pressure of the gas is 800 kPa. Assume the processes connecting the end states are of the following types: (a) the pressure is constant, (b) the product PV is constant, and (c) the product PV2 constant. (d) Compare the processes by plotting the three paths on the same PV diagram.

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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.