【摘要】 本文首先根据热力学方程推导出标准平衡常数表达式,接着指出中专化学中的经验平衡常数Kc或Kp则是根据质量作用定律或由实验结果归纳出来的,是平衡时各物质的浓度之比或分压之比。进而分析了两者在量纲、数值上的区别与联系。更多还原

【Abstract】 First the representation of the standard balance Constant is deduced from the equations of thermodynamics in this article,then it is pointed out that the experienced balance constant kc or kp uesed in the chemieal education of secondary technical Schools are deduced from the unit of the mass law,numeric Caculations or conclusions of expermiment results,which are in fact the ratios of components or ratios of components′pressure when the syetem is under a balanced state.Furthermore,the two ratios are analysed in dimension and numeric Value At balanced constant.更多还原