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Classical thermodynamics deals with states of dynamic equilibrium. The state of a system at thermodynamic equilibrium is the one for which some thermodynamic potential is minimized, or for which the entropy (S) is maximized, for specified conditions. One such potential is the Helmholtz free energy (A), for a system with surroundings at controlled constant temperature and volume:
 
Classical thermodynamics deals with states of dynamic equilibrium. The state of a system at thermodynamic equilibrium is the one for which some thermodynamic potential is minimized, or for which the entropy (S) is maximized, for specified conditions. One such potential is the Helmholtz free energy (A), for a system with surroundings at controlled constant temperature and volume:
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经典热力学研究'''<font color="#ff8000">动态平衡 Dynamic Equilibrium</font>'''的状态。一个系统在热力学平衡的状态是一些'''<font color="#ff8000">热动力位能 Thermodynamic Potential</font>'''被最小化,或者'''<font color="#ff8000">熵 Entropy</font>'''(s)被最大化,对于特定的条件。一个这样的电位是'''<font color="#ff8000">亥姆霍兹自由能 Helmholtz Free Energy</font>'''(a) ,用于一个周围环境温度和体积可控的系统:
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经典热力学研究'''<font color="#ff8000">动态平衡 Dynamic Equilibrium</font>'''的状态。系统的热力学平衡状态是对于特定的条件,一些'''<font color="#ff8000">热动力位能 Thermodynamic Potential</font>'''被最小化,或者'''<font color="#ff8000">熵 Entropy</font>'''(S)被最大化。对于一个周围环境温度和体积可控的系统,有一个'''<font color="#ff8000">亥姆霍兹自由能 Helmholtz Free Energy</font>'''(A)这样的位能:
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Another potential, the Gibbs free energy (G), is minimized at thermodynamic equilibrium in a system with surroundings at controlled constant temperature and pressure:
 
Another potential, the Gibbs free energy (G), is minimized at thermodynamic equilibrium in a system with surroundings at controlled constant temperature and pressure:
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另一个潜在的'''<font color="#ff8000">吉布斯自由能 Gibbs Free Energy</font>''',在恒定温度和压力下的系统中,在热力学平衡最小化:
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另一个潜在的'''<font color="#ff8000">吉布斯自由能 Gibbs Free Energy</font>'''(G),在恒定温度和压力的系统中,热力学平衡最小:
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Thermodynamic equilibrium is the unique stable stationary state that is approached or eventually reached as the system interacts with its surroundings over a long time. The above-mentioned potentials are mathematically constructed to be the thermodynamic quantities that are minimized under the particular conditions in the specified surroundings.
 
Thermodynamic equilibrium is the unique stable stationary state that is approached or eventually reached as the system interacts with its surroundings over a long time. The above-mentioned potentials are mathematically constructed to be the thermodynamic quantities that are minimized under the particular conditions in the specified surroundings.
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热力学平衡是一种独特的稳定定态,当系统长时间与周围环境相互作用时,它可以被接近或最终到达。上述势是数学构造的热力学量,在特定的环境条件下最小化。
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热力学平衡是一种独特的稳定定态,当系统长时间与周围环境相互作用时,它可以被接近或最终到达。上述位能是数学构造的热力学量,在特定的环境条件下最小化。
 
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== Conditions ==
 
== Conditions ==
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