Question # 2 A gas of mass (4)kg undergoes a quasi-static expansion which follows a relationship p = a+bv, where ‘a’ and b are constants. The initial and final pressures are (1017) kpa and (217) kpa respectively and corresponding volumes are 0.2meter cubic and 1.2meter cubic. The specific internal energy of the gas is given by u=1.5 pv -85kJ/kg, where ‘p’is in kpa and ‘v’is

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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.