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Questions related from Shufeng Zhang
The reasons are that: 1) As we know, Variational Calculus is about Functional, however, here, we have known Q=f(T, V, P), Q=f(T, V, P) is a normal function, if you think δQ as the variation,...
08 March 2018 7,890 6 View
Please notice that , in thermodynamics, when we're discussing "process" or "cycle", we're discussing a process or a cycle of a specific path(trajectory). The arbitrary cycle that a set of...
08 March 2018 3,788 21 View
Is Q(heat) a state variable or a process variable ? Q = f(T, V, P) is a process quantity which varies with path, it has innumerable forms between the same original and terminal states, and has a...
21 January 2018 1,722 14 View
Physics paper Entropy:A concept that is not a physical quantity Published in (SCI-E Journal) PHYSICS ESSAYS (Volume 25, Issue 2 (June 2012)). URL: http://physicsessays.org/toc/phes/25/2...
19 July 2012 8,762 2 View
A wrong theory in physics: theory of Entropy Entropy：A concept that is not Physical Quantity shufeng-zhang [email protected] Central-South University...
06 November 2010 5,484 27 View
When define heat engine efficiency η as: η= W/ W1 , that is, replacing Q1 in the original definition η=W/ Q1 with W1 , W still is the net work the heat engine applied to the outside in one...
20 April 2010 5,771 21 View
