This is a nifty little problem set, and it very nicely demonstrates some of the key ideas of the photon gas. It is a great representation of the P-V plane for the Carnot Cycle. I have no difficultly in accepting any of the information required for the construction of the P-V plane. The issue...
So I have been thinking about the photon gas, and I have read several papers talking about how a Carnot cycle could be created for it. This is fantastic, and it is something I am quite comfortable with. All of the papers present the P-V diagram as the "golden" Carnot cycle for the photon gas...