What is the instantaneous Rate of Reaction? How is it determined?
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Instantaneous Rate of Reaction
To express the rate at a particular moment of time we determine the instantaneous rate.
It is obtained when we consider the average rate at the smallest time interval say dt ( i.e. when ∆t approaches zero). Hence, mathematically for an infinitesimally small dt instantaneous rate is as follows:-
As ∆t → 0
Calculation of instantaneous rate at
The instantaneous rate of hydrolysis of butyl chloride is shown in the figure:-
It can be determined graphically by drawing a tangent at time t on either of the curves for the concentration of R and P vs time t and calculating its slope.