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If 60 % of a first order reaction was co...

If 60 % of a first order reaction was completed in 60 minutes, 50 % of the same reaction would be completed in approximately
[log = 4 = 0.60, log 5 = 0.69].

A

45 minute

B

60 minute

C

40 minute

D

50 minute

Text Solution

Verified by Experts

`k = 2.303/60 log. (100)/40 …(i)`
`k = 2.303/t log. (100)/50 …(ii)`
comparing (i) and (ii)
`:. 60/t= 0.40/0.3010`
`:.t = 45` minutes
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