- #1
eurekameh
- 210
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1 -> 2 : Isochoric heat addition
2 -> 3 : Polytropic expansion
3 -> 1 : Isobaric compression back to the initial state
Sketch this cycle on a pressure-volume plot in relation to the saturation curve.
Now, my question is, why is the polytropic process on the PV plot concave up and not down, as shown on http://imageshack.us/photo/my-images/685/unledmhi.png/ ?
2 -> 3 : Polytropic expansion
3 -> 1 : Isobaric compression back to the initial state
Sketch this cycle on a pressure-volume plot in relation to the saturation curve.
Now, my question is, why is the polytropic process on the PV plot concave up and not down, as shown on http://imageshack.us/photo/my-images/685/unledmhi.png/ ?