Question

If a first order reaction takes 32 minutes for 75% completion, then time required for 50% completion is -

Answer 1

Hello dear. Your answer is here.

75%= 32 minutes
1%= 32/75
=0.4266666667

50%= 0.426*(50/100)
= 0.426*0.5
=0.213 minutes= 12.78 seconds