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不同温度压力下非理想系统实验平衡常数的热力学计算,无论在理论上或者在生产实践上均有重大意义和实际应用,对于一些高温高压反应尤为重要。(这里的实验平衡常数是指平衡态时各反应物质的浓度商。)应用Van’t Hoff方程只能求得标准平衡常数,对于标准态下反应的摩尔焓变(△_rH_m~θ)少于零向平衡态下反应的微分摩尔焓变(△_rH_m~(eq))大于零的非理想反应系
Thermodynamic calculation of experimental equilibrium constants of non-ideal system under different temperature and pressure is of great importance and practical application both in theory and in production practice, and is especially important for some high-temperature and high-pressure reactions. (The experimental equilibrium constant here refers to the concentration of each reactant in the equilibrium state.) The Van’t Hoff equation can only be used to determine the standard equilibrium constant, and the molar enthalpy change (Δ_rH_m ~ θ) for the standard reaction is less than The differential molar enthalpy change (△ _rH_m ~ (eq)) of the reaction in the zero-equilibrium state is greater than zero