The data in the table concern the lactonization of hydroxyvaleric acid at 25 degrees Celsius. They give the concentration [math] of this acid in moles per liter after [math] minutes.
Find the average rate of reaction for the following time intervals:

(a) [math], (b) [math], (c) [math]

(By plotting a graph, can you see why the instantaneous rate of change is approximately -.01 (moles/L)/min?)

(a) (moles/L)/min
(b) (moles/L)/min
(c) (moles/L)/min