1.

A zero order reaction is 20% complete in 20 minutes . Calculate the value of the rate constant . In what time will the reaction be 80% complete ?

Answer»

SOLUTION :(i) A = 100% , x = 20% ,Therefore , a -x = 100 - 20 = 80
For the zero order reaction `k=(x/t)impliesk=(20/20)=1`
Rate constant for reaction = 1
(II) To calculate the time for 80% of COMPLETION
k = 1 , = 10 , x = 80% , t = ?
Therefore , `t = (x/k)=(80/1)=80min `


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