用循环法在666—928°K范围内,从两个方向研究了氧化亚镍的氯化反应平衡。确定其反应方程式为: NiO(固)+Cl_2(气)=NiCl_2(固)+1/2O_2(气)。所得数据可用下式表示: logK_p=(2720/T)-2.312, △G_T~O=-12,450+10.58T。 本工作所得数据与文献热力学数据计算结果基本接近。△G~o的最大绝对误差估计为±300卡左右。但随着温度的降低的实验结果与本工作数据有所差异,这可能是由于前者的实验未达到平衡所致。
The chlorination equilibrium of nickelous oxide has been investigated using the circulation method within the temperature range 666—928°K from both sides. The reaction is established as NiO(s)+Cl_2(g)=NiCl_2(s)+1/2O_2(g). The equilibrium constant and standard free energy of this reaction may be represented aslog K_p=(2720/T)-2.312ΔG_T~O=-12450+10.58 T.The result is found to be in good agreement with thermodynamic data in the literature. The maximum error for ΔG_T~O is estimated to be about +300 cal. At lower temperature, the experimental results of show some deviation from our data, probably due to unattainment of equilibrium in his experiments.
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