deletions | additions       diff --git a/Irreversible kinetics.tex b/Irreversible kinetics.tex  index f228836..2da3681 100644  --- a/Irreversible kinetics.tex  +++ b/Irreversible kinetics.tex 
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From the survival function, we define the time-dependent rate coefficient through an appropriate time derivative depending on the total order of reaction. For first-order irreversible decay reactions, $A\to \textrm{products}$ and $i=1$, the rate law defines the time-dependent rate coefficient  \begin{equation}  k_1(t) \equiv \frac{-d\ln S(t)}{dt} S_1(t)}{dt}  \end{equation}  In traditional kinetics, the rate coefficient irreversible decay is assumed constant, in which case $k(t)\to\omega$. We define $k(t)$ from the appropriate survival function and rate law  \begin{equation}