4) Air is confined to a vertical cylinder with a 2 cm diameter and 1 meter length that is closed at the top with a well-lubricated piston weighing 10 N. The cylinder is insulated. Initially the air is at room temperature and at the ambient pressure in Albuquerque, and the weight of the piston is supported by a couple of pins. When the pins are removed, the air is compressed under the additional weight of the piston. How far will the weight fall before coming to equilibrium? Work this problem two different ways. First, assume a compression at a constant external pressure. Second, assume a reversible compression. Assume ideal gas behavior.

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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.