Question

The half-life period of a first order chemical reaction is 6.93minutes.

Answer 1

ALOHA...!!ʕ•ٹ•ʔ

✌️__________✌️

●K = 0.693 ÷ t(half time period)
●K = 0.693 ÷ 6.93
●K = 0.1

✌️__________✌️

I hope this will help u...☺️^-^☺️

Answer 2

K=0.693/6.930 =0.1 t99 2.303/0.1 log 100/1
2.303×2/0.1 =46.06 min utes ✌✌✌✌✌✌✌✌✌✌✌:-)