The graphical representation of equilibrium for the isothermal and isobaric reactions of ideal gases

被引：1
|
作者：
Zhang, SM [1 ]
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha, Peoples R China
来源：
JOURNAL OF MATHEMATICAL CHEMISTRY | 2005年 / 38卷 / 02期
关键词：
ideal gases; isobaric reactions; equilibrium shift; graphical representation;
D O I：
10.1007/s10910-005-4838-5
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The equilibrium for the isothermal and isobaric reactions of ideal gases is investigated in virtue of the intuitionistic figure. The curve ln Q(x) (= Sigma(i) v(i) ln x(i))-xi is similar to the curve of tangential function which has one inflection and two vertical asymptotes. The equation Delta G degrees = - RT ln Q(x) only has one root xi epsilon and it is suitable to find xi epsilon by dichotomy. For non-inert substance, when v(i)/Sigma(i)/v(i) < 0 or v(i)/Sigma(i) v(i) > x(i)(0), to increase substance i will make an equilibrium shift in the direction to deplete substance i; when x(i)(0) > v(i)/Sigma(i) v(i) > 0, to increase substance i will make an equilibrium shift in the direction to produce more substance i.
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页码：129 / 140
页数：12
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