Yuan Duqi. Finite-time Thermodynamics Approach to the Phase Transition of the Second Order[J]. Chinese Journal of Chemical Physics , 2001, 14(2): 246-250. doi: 10.1088/1674-0068/14/2/246-250
Citation: Yuan Duqi. Finite-time Thermodynamics Approach to the Phase Transition of the Second Order[J]. Chinese Journal of Chemical Physics , 2001, 14(2): 246-250. doi: 10.1088/1674-0068/14/2/246-250

Finite-time Thermodynamics Approach to the Phase Transition of the Second Order

doi: 10.1088/1674-0068/14/2/246-250
  • Received Date: 2000-10-16
  • A new formula for the specific heat jump ΔC|Tc to the phase transition of the second order and generalized Ehrenfest equation are derived by means of the method of endoreversible Carnot cycle, which can mirror the irreversible features in a phase transition of the second order. The results are universal for reversible phase transition and irreversible phase transition of various substances. Then, the irreversible phase transition of the second order for simple system (P,V,T), the superconducting transition and paraelectricity-ferroelectrics transition are discussed by means of the new formula for the specific heat jump.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Finite-time Thermodynamics Approach to the Phase Transition of the Second Order

doi: 10.1088/1674-0068/14/2/246-250

Abstract: A new formula for the specific heat jump ΔC|Tc to the phase transition of the second order and generalized Ehrenfest equation are derived by means of the method of endoreversible Carnot cycle, which can mirror the irreversible features in a phase transition of the second order. The results are universal for reversible phase transition and irreversible phase transition of various substances. Then, the irreversible phase transition of the second order for simple system (P,V,T), the superconducting transition and paraelectricity-ferroelectrics transition are discussed by means of the new formula for the specific heat jump.

Yuan Duqi. Finite-time Thermodynamics Approach to the Phase Transition of the Second Order[J]. Chinese Journal of Chemical Physics , 2001, 14(2): 246-250. doi: 10.1088/1674-0068/14/2/246-250
Citation: Yuan Duqi. Finite-time Thermodynamics Approach to the Phase Transition of the Second Order[J]. Chinese Journal of Chemical Physics , 2001, 14(2): 246-250. doi: 10.1088/1674-0068/14/2/246-250

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