2. (a) What is the temperature of air molecules if their average kinetic energy is 61 meV? (b) A sample of monatomic ideal gas occupies 2.00 L at 1.00 atm and 300 K. Its state is represented by point A in the figure below. It is heated at constant volume to 3.00 atm (point B). Then it is allowed to expand isothermally to 1.00 atm (point C) and at last compressed isobarically to its original state. Find Q, W., and AEint for the whole cycle.

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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.