Question

show that in the case of a first order reaction time taken for 99% completion is ten times the half life​

Answer 1

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Answer:-

Expression for rate law for first order kinetics is given by:

where,

k = rate constant

t = age of sample

a = let initial amount of the reactant

a - x = amount left after decay process  

a) for completion of half life:

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

b) for completion of 99.9 % of reaction

Thus it is proved that time take for completion of 99.9% for reaction is 10 times of that of half life

Explanation:

Answer 2

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