Is gravity entropic force?
Journal article published in 2014 by
Rong-Jia Yang 
This paper is made freely available by the publisher.
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Abstract
If we assume that the source of thermodynamic system, $ρ$ and $p$, are also the source of gravity, thermal quantities, such as entropy, temperature, and chemical potential, can induce effects of gravity, or gravity can induce thermal effects. We find only for systems with constant temperature and zero chemical potential, gravity can be seen as an entropic force. The case for Newtonian approximation is discussed. ; Comment: 6 pages