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美国的wolf提出计算不同温度时 Weston标准电池的电动势公式 Er()=1.01845-405×10°(T-293.15) 9.5×10(T-293.15)2+1×10(T-293.15) 本塞 cds04饱和落浪 ds04·8/3H0晶体 Cd汞齐 韦斯顿标准电池简 图9-2-3 §9-3可逆电池的热力学( Thermodynamics of reversible cel 热力学函数与电池电动势的关系( Relationship between thermodynamic function and electromotive forces of cell) 1.1Gibs自由能与电池电动势( Relationship between Gibbs free energy and electromotive △G=-nFE (9-3-1) 标准状态时, △G=-nFE (9-3-2) 1.2平衡常数与电池电动势( Balanceable constant and electromotive forces of cell) pr nFE E e RT (9-3-3) 13熵函数与电池温度系数( Entropy and temperature coefficient of cell △S=n(aE T (9-3-4) P 标准状态时, (9-3-5)美国的 Wolff 提出计算不同温度时 Weston 标准电池的电动势公式: -5 -7 2 -8 3 ( ) 1.01845 4.05 10 (T 293.15) 9.5 10 (T 293.15) + 1 10 (T 293.15) E V T = − × − − × − × − 图 9-2-3 §9-3 可逆电池的热力学(Thermodynamics of reversible cell) 1.热力学函数与电池电动势的关系(Relationship between thermodynamic function and electromotive forces of cell) 1.1 Gibbs 自由能与电池电动势(Relationship between Gibbs free energy and electromotive forces of cell) ∆ = G n− FE (9-3-1) E 标准状态时, G nF (9-3-2) θ θ ∆ = − 1.2 平衡常数与电池电动势(Balanceable constant and electromotive forces of cell) exp( ) nFE K RT θ θ = (9-3-3) 1.3 熵函数与电池温度系数(Entropy and temperature coefficient of cell) p E S n F T ⎛ ⎞ ∂ ∆ = ⎜ ⎟ ⎝ ⎠ ∂ (9-3-4) 标准状态时, p E S nF T θ θ ⎛ ⎞ ∂ ∆ = ⎜ ⎟ ⎝ ⎠ ∂ (9-3-5)
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