Isobutane gas and liquid mixture (x=0.9) at stage 1 is running through a valve to get 100% vapor condition in stage 2. Isobutane mass flow rate is 10 kg/s. The thermodynamic properties are shown in figure below. Valve P₁ = 17bar P210 bar T₁ = 91.78 C Determine: a. Enthalpy at stage 1 b. What is temperature and enthalpy at the stage 2? c. Draw the process in T-V diagram. Show all stages and show the process with the arrow.

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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.