文档介绍：第2章均相反应动力学 Chapter 2 ics of Homogenous Reactions
反应速率方程 The Rate Equation
反应速率表示方法
The Rate Expressions
The minus sign means disappearing
Suppose a single-phase reaction A P
The most useful measure of rate for A is then
均相反应速率定义:单位时间内,单位体积反应混合物中某一组分i的反应量(或生成量)。
例如,有一简单反应 A P
Caution 1 & 2
(-rA) 为一整体符号,恒为正值
Suppose a single-phase reaction
aA+bB pP+sS
The rates of all materials are related by
Caution 3
According to the rate equation
Caution 4
Or For the ideal gases where
In a constant-volume system the measure of reaction rate ponent i es
Caution 5
The rate of reaction in its various forms is defined as follows
Based on unit volume of reaction fluid
Based on unit mass of solid in fluid-solid systems
Based on unit interfacial surface in two-fluid systems or based on unit surface of solid in gas-solid systems
Based on unit volume of solid in gas-solid systems
Based on unit volume of reactor