2)overall reactions According to the number of elementary reactions involved, the overall reaction can be classified into simple reaction简单反应 complex reaction复杂反应
According to the number of elementary reactions involved, the overall reaction can be classified into: simple reaction complex reaction 2) overall reactions 简单反应 复杂反应
Reaction rates and rate equation 1. Expression of reaction rate
Reaction rates and rate equation 1. Expression of reaction rate
The reaction rate (r) of a chemical reaction is defined as the cange in concentration of a reactant or product per unit time. There are two kinds of reaction rates, one is the average rate △[4 平均速率 △t
The reaction rate (r) of a chemical reaction is defined as the change in concentration of a reactant or product per unit time. There are two kinds of reaction rates, one is the average rate t A r = [ ] 平均速率
The other is the instantaneous rate defined as 反应速率
The other is the instantaneous rate defined as: dt d A r [ ] = 反应速率
N2+3H2→>2NH3 dc 2 atH dc NH 3 dc dt M2=一 dt
N2 + 3H2 → 2NH3 dt dC r H H 2 2 = − dt dC r N N 2 2 = − dt dC r NH NH 3 3 =