In a closed system, a 1 kg fluid has initial temperature of 400C and pressure of 2MPa and underwent an isentropic process with final pressure of 3MPa. Determine the change in internal energy, change in enthalpy, work and heat transfer in kJ if the fluid is a. Ammonia gas with specific ratio of 1.32 b. Steam

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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.