One-half pound of air is contained in a closed, rigid, insulated tank. Initially the temperature is 520°R and the pressure is 14.7 psia. The air is stirred by a paddle wheel until its temperature is 600°R. Using the ideal gas model,
determine for the air the change in exergy, the transfer of exergy accompanying work, and the exergy destruction, all in Btu. Ignore the effects of motion and gravity and let T0 = 537°R, p0 = 14.7 psia.