(a) Which of the thermodynamic quantities T, E, q, w, and S are state functions?
(b) Which depend on the path taken from one state to another?
(c) How many reversible paths are there between two states of a system?
(d) For a reversible isothermal process, write an expression ΔE for in terms of q and w and an expression for ΔS in terms of q and T.