Physics – General Physics
Scientific paper
2010-03-08
Physics
General Physics
11 pp. Submitted to Physical Review D
Scientific paper
In the following paper, certain blackhole dynamic potentials have been developed definitively on the lines of classical thermodynamics. These potentials have been refined in view of the small differences in the equations of the laws of blackhole dynamics as given by Bekenstein and those of thermodynamics. Nine fundamental blackhole dynamical relations have been developed akin to the four fundamental thermodynamic relations of Maxwell. The specific heats and have been defined. For a blackhole, these quantities are negative. The equation has been obtained as an application of these fundamental relations. Time reversible processes observing constancy of surface gravity are considered and an equation connecting the internal energy of the blackhole, the additional available energy defined as the first free energy function, and the surface gravity, has been obtained. Finally as a further application of the fundamental relations, it has been proved for a homogeneous gravitational field in blackhole spacetimes that . This is dubbed as the homogeneous fluid approximation in context of the blackholes.
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