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The second law of thermodynamics revisited I. The absolute zero of potential and the general expression for the efficiency of universal reversible cycle

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  • Ginzburg, B.Z.
  • Aharon, I.

Abstract

The fundamental equation of thermodynamics expresses the internal energy of a system as a function of all the extensive parameters of the system. The differential form of this equation is referred to as the Gibbs equation. We have integrated this equation and have used it to derive an expression characterising the efficiency of a system for any kind of cyclical process by which work is produced. This system has access to two reservoirs at low and high thermodynamics potential respectively. It is claimed that all thermodynamic potentials (temprature, chemical potential, hydrostatic pressure, electric potential, etc) can have an absolute value of zero which we defined as the value of the potential in the lower reservoir when the efficiency of the cycle is 1. It is also shown that the classical Carnot machine, in which heat is converted into mechanical work, is an example of the general expression.

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  • Ginzburg, B.Z. & Aharon, I., 1994. "The second law of thermodynamics revisited I. The absolute zero of potential and the general expression for the efficiency of universal reversible cycle," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 210(3), pages 489-495.
    • Handle: RePEc:eee:phsmap:v:210:y:1994:i:3:p:489-495
    DOI: 10.1016/0378-4371(94)90095-7
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    Cited by:

    1. Li, Shuangjun & Deng, Shuai & Zhao, Li & Zhao, Ruikai & Yuan, Xiangzhou, 2021. "Thermodynamic carbon pump 2.0: Elucidating energy efficiency through the thermodynamic cycle," Energy, Elsevier, vol. 215(PB).

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