- 1 PHYSICS ESSAYS ( Volume 25, Issue 2 (June 2012) ) P172~176
URL: http://physicsessays.
org/toc/phes/25/2
Entropy: A concept that is not a physical quantity
Shufeng-zhang
College of Physics, Central South University, 932 Lushan south Road, Changsha...
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- 1 PHYSICS ESSAYS ( Volume 25, Issue 2 (June 2012) ) P172~176
URL: http://physicsessays.
org/toc/phes/25/2
Entropy: A concept that is not a physical quantity
Shufeng-zhang
College of Physics, Central South University, 932 Lushan south Road, Changsha 410083, China
E-mail: uhsgnahz@126.
com
Abstract : This study has demonstrated that entropy is not a physical quantity, that is, the physical
quantity called entropy does not exist.
If the efficiency of heat engine is defined as η = W/W1, and the
reversible cycle is considered to be the Stirling cycle, then, given ∮dQ/T = 0, we can prove ∮dW/T = 0
and ∮d/T = 0.
If ∮dQ/T = 0, ∮dW/T = 0 and ∮dE/T = 0 are thought to define new system state
variables, such definitions would be absurd.
The fundamental error of entropy is that in any reversible
process, the polytropic process function Q is not a single-valued function of T, and the key step of
Σ[(ΔQ)/T)] to ∫dQ/T doesn’t hold.
Similarly, ∮dQ/T = 0, ∮dW/T = 0 and ∮dE/T = 0 do not hold, either
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