quenching既作用..................

Quenching 即stop a particular reaction
而 quenching in titration 主要用於expt' for finding
RATE CONSTANT
(titration method)
在此需要叉開少少
如果要搵 rate constant (k), 通常會plot 幾種graph
I) for zeroth order
- [A] vs t
slope = k

II) for first order
- [A] vs t --> 搵half-life 再搵 k
- ln[A] vs t
slope = k

III) for second order
- 1/[A] vs t
slope = k

[A] 就係從titration calculation 中所求得之物
因為要 plot [A] against time
即係我地要知響 10s, 20s, 30s......果一刻的[A]
QUENCH / STOP 個reaction 就等於令[A] 不變
由於做titration 需時, 如果個reaction 唔停, 咁[A] 就唔準
個expt' 就無意思!