Elliott H. Lieb and Jakob Yngvason
A Fresh Look at Entropy and the Second Law of Thermodynamics
(34K, LaTex)

ABSTRACT.  This paper is a non-technical, informal presentation of our theory of 
the second law of thermodynamics as a law that is independent of 
statistical mechanics and that is derivable solely from certain simple 
assumptions about adiabatic processes for macroscopic systems. It is not 
necessary to assume a-priori concepts such as "heat", "hot and cold", 
"temperature". These are derivable from entropy, whose existence we 
derive from the basic assumptions. See mp_arc 99-37 and 98-339.