Question

A first order reaction is 40% complete in 50 minutes . In what time will the reaction be 80% complete?​

Answer 1

Answer:

1 hour and 40 min

Explanation:

40% is done in 50 min
1% is don in 50/40
80% is done in 50*80/40
                          =50*2
                             =100 min
                             = 1 hour and 40 min
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