In Section 3, the unified first law of gravitational thermodynamics and the Clausius
equation on [Y.sub.A] for an isochoric process in EBI Universe were discussed.
(34) In 1850, such limitation was affirmed by Clausius
in a statement that is now regarded as an expression of the second law of thermodynamics, the principle of conservation of energy being the first one.
coined it some 150 years ago from the ancient Greek word for `transformation'.
combined with the Clausius
relation (Td[S.sub.A] = -[delta][Q.sup.m]), to get [8, 15]
to drive the work; but the faster any work is accomplished, the less of the energy is used that way, because more of it is lost instead through contamination by entropy (Carnot 1824, Clausius
The practice of making such cosmic claims for entropy dates back to Rudolph Clausius
, the physicist who originally coined the term.
This approach soon generalized to the cosmological situation, where it was shown that, by applying the Clausius
relation to the apparent horizon of the Friedmann-Robertson-Walker (FRW) universe, the Friedmann equation can be rewritten in the form of the first law of thermodynamics .
The amount of dissipated energy of a physical system is its entropy (Clausius
where we used Td[S.sub.A] [equivalent to] -[delta][Q.sup.m] (the Clausius
relation) and V = (4[pi]/3)[[??].sup.3.sub.A] (aerial volume) relations to obtain this equation [20, 21, 32, 64].
and Clapeyron make their annual appearance.