half Life time of a reaction is 10 minute if the reaction is first order find out the amount of reactant left behind after one hour
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Answer:
k=
t
1/2
0.693
k=
10
0.693
k=0.0693 minutes
−1
Rate law expression for first order kinetics is given by:
t=
k
2.303
log
a−x
a
where,
k = rate constant
t = time taken for the decay process
a = initial amount of the reactant
a - x = amount left after decay process
Putting values in above equation, we get:
100=
0.0693
2.303
log
100−x
100
x=99.9
Thus the amount decomposed is 9.9 and thus the percentage of the reaction completion is 99.9%.
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