An ideal gas initially at 300 K and 1 bar undergoes a three-step mechanically reversible cycle in a closed system. Pressure increases isothermally to 5 bar; Pressure increases at constant volume; and, the gas returns adiabatically to its initial state. Take 
= (7/2)R and 
= (5/2)R.
(a) Sketch the cycle on a PV diagram.
(b) Determine (where unknown) V, T, and P for states 1, 2, and 3.
(c) Calculate Q, W, ?U, and ?H for each step of the cycle.
a. 
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