1. Can one of the heat transfers in Eqs. 8.5 and 8.6 be to or from the ambient air?
2. Is all the energy in the ocean available?
3. Does a reversible process change the availability if there is no work involved?
4. Is the reversible work between two states the same as ideal work for the device?
5. When is the reversible work the same as the isentropic work?