The pressures in the piston-cylinder assembly shown in the figure are P1 = 1000 kPa P2 = 500 kPa and P3 = 100 kPa. If the diameters of the small and large cylinders are D1 = 3 cm and D2 = 8 cm, respectively, what is the mass of the piston? %3D %3D

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Q: ne weight of the piston is

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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.