QI/ the cylinder contains 0.2 kg a refrigerant R-134a of saturated water liquid at 20 °C. The stops location corresponds to 50% of the initial volume. The water is heated to the final state at 50 °C. If the piston reaches the stops? and what are the initial and final pressure. R-134 a

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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.