用循环法研究了氧化铜氯化反应平衡.在300—450℃范围内,发现该反应分两个阶段进行,得到如下结果: 2CuO(固)+C1_2(气)=Cu_2OCl_2(固)+1/2O_2(气) logK_p~Ⅰ=(3061/T)-2.228, ΔG_Ⅰ~O=-14010+10.20T。 Cu_2OCl_2(固)+Cl_2(气)=2CuCl_2(固)+1/2O_2(气), logK_p~Ⅱ=(2370/T)-1.90, ΔG_Ⅱ~O=-10850+8.69T。 对中间化合物(Cu_2OCl_2)的物理性质,进行了某些探讨,并计算了中间化合物卽氯氧化铜在所研究的温度范围内的平均生成焓约为-84,900卡/克分子;平均生成熵约为-51.23卡/度·克分子。
The chlorination equilibrium of cupric oxide has been investigated using the circulation method. Within the temperature range 300—450℃, the reaction is found to take place in two stages, and the following results are obtained:2CuO(s)+Cl_2(g)=Cu_2OCl_2(s)+1/2O_2(g), (1)logK_p~Ⅰ=(3061/T)-2.228,ΔG_Ⅰ~O=-14010+10.20T.Cu_2OCl_2(s)+Cl_2(g)=2CuCl_2(s)+1/2O_2(g), (2)logK_p~Ⅱ=(2370/T)-1.90,ΔG_Ⅱ~O=-10850+8.69T.The physical properties of the intermediate compounds have been studied, and within the given temperature range, the average enthalpy of formation of the intermediate compound Cu_2OCl_2 is found to be -84900 cal./mole; and its average entropy of formation to be -51.23 e.u.
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