There is a piston-cylinder assembly with a mass of 50 kg and a surface area of ​​0.01 m2. The mass of air is 5 g. The initial volume of air is 5 liters. Atmospheric pressure is 100 kPa. As the specific internal energy of the air decreases by 260 kJ/kg the volume of air is also gradually decreasing to 0.002 m3. Ignore friction that is between the piston and the c

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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.