Vi A2

(c) Show that the process is reversible by calculating the work done on the surroundings.

The work done on the surroundings consists of the pV work by the rising piston against the pressure of the surroundings, Wpress, the work done in elevating the mass of the piston, Wm, and the work done in compressing the spring, Wsp.

Wsur = p^CV - Vi) = 157 J WM = Mgx2 = Mg(V2 - Vl)/A = 147 J

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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