【摘要】 前人工作的基础上 ,提出了计算复杂硅酸盐矿物热力学数据的一种简单近似计算方法 ,即将复杂硅酸盐看作由若干酸性、碱性氧化物化合而成 ,复杂硅酸盐的Gibbs自由能 (或焓 )近似等于各氧化物的Gibbs自由能 (或焓 )之和再加上酸性、碱性氧化物之间化合的反应自由能 (或反应焓 ) .该方法计算简便 ,大部分情况下相对误差小于 2 % ,能够计算任意温度下复杂硅酸盐矿物的Gibbs自由能和焓更多还原

【Abstract】 A new simple method to estimate the Gibbs free energy and enthalpy of complicate silicates was introduced in this paper. It is assumed that the complicate silicates are made up of acidic oxides and alkaline oxides. And the most alkaline oxide always firstly reacts with the most acidic oxide. Then the Gibbs free energy (or enthalpy) of complicate silicates approximately equals the sum of the Gibbs free energy (or enthalpy) of all oxides and the free energy of reactions (or enthalpy of reaction) between acidic oxides and alkaline oxides. The method is very simple without any estimated parameters. The Gibbs free energy and enthalpy at any temperature can be calculated. In most cases, the error is less than 2%.更多还原