Chemistry, asked by brarprabh8111, 1 year ago

A first order reaction takes 23.1 minutes for 50% completion.calculate the time required for 75% completion of this reaction.

Answers

Answered by saitejassb
2
amount left = 25% 
initial amount = 100% 
time can be calculated by using 
a-x = a/2^n 
where 
a is total amount 
x is amount consumed 
n is ratio of timetaken to t1/2 
t1/2 is half period 
: 25 = 100/2^n 
: 2^n =4 
: n = 2 
: timetaken/t1/2 = 2 
:timetaken = 2 × 23.1= 46.2 min
Similar questions