50 kg of Refrigerant R134 are in the state of Satucated moture at a pressure of Pa180 kpa. The quality x is equal to 0.2. It undergoes an expansion process to a superheated state of P2 140 kPa and a temperature Ty-30°C. a) What is the initial temperature of the mixture. bị use the quality x to find the specific volume v of the mixture (so called vavg) and the total volume V1. Find the specific enthalpy of the mixture hy and conclude the total enthalpy Hy. d) Find the variation of enthalpy AH-H-H, between the two states. eFind the variation of volume between the two states

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A: For the solution refer below images.

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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.