Physical significance of entropy or of the second law

by Joseph Frederic Klein

) and

= absolute gas constant [1545 in F.P.S. system]. Here the first of Eqs. (22), represents the combined laws of BOYLE, GAY-LUSSAC, and AVOGADRO. We get besides from the equating of (20) and (21), the additional relations,

where mechanical equivalent

C.G.S. system.

From this follows

as is known for monatomic gases.