2. Consider filling compressed argon from a high-pressure supply line as shown below. Before filling, the cylinder is empty. The valve is then opened, exposing the tank 50 bar line at room temperature until the pressure of the cylinder reaches 50 bar. The valve is then closed. For argon take cp=(5/2)R and the molecular weight to be 40 kg/kmole. You may use the ideal gas model. A. What is the temperature right after the valve is closed? B. If the cylinder sits in storage for a long time, how much heat is transferred (in kJ/kg)? C. What is the pressure of the cylinder when it is shipped (after it was stored for a long time)?

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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.