Show that for a first order reaction the time required for 99.9% completion is about 10 times its half life period.

For the first order reaction, time required for 99% completion is :

Show that in case of a first order reaction, the time taken for completion of 99.9% reaction is ten times the time required for half change of the reaction.

The time required for 100% completion of a zero order reaction is

Show that for a first order reaction, t_(99.9%)=10t_(1//2) .

The time required for 60 % completion of a first order reaction is 50 min . The time required for 93.6 % completion of the same reaction will be