R. Bejan in his book "Advanced Engineering Thermodynamics" showed that the stable equilibrium state ?

Abdul Hadi N Khalifa @Abdul_Hadi_Khalifa

08 August 2017 1 8K Report

Dr. Bejan in his book "Advanced Engineering Thermodynamics" showed that the stable equilibrium state that is approached at constant entropy is a state of minimum energy is (dU)_S=0, can any one tell me how can get the second equation that said that (d^2 U)_S>0?

Shufeng Zhang

Entropy: A concept that is not a physical quantity

https://www.researchgate.net/publication/230554936_Entropy_A_concept_that_is_not_a_physical_quantity

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