Questions
For the first order reaction, XY the time taken for 90% completion of the reaction is 666 minutes. Time taken for 93.75% completion of the reaction will be ------ minutes
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a
1000
b
800
c
1200
d
2000
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Correct option is B
t90%t50%=2.303K log 100100-902.303K log 100100-50; t90%t50%=1 log 2 t90%=3.33t50%; t50%=6663.33=200 minutes ; Conclusion : t99.9%=10t50%; t75%=2t50%; t87.5%=3t50%; t93.75%=4t50%; t 96.875%=5t50%;Similar Questions
In a first order reaction, reactant concentration 'C' varies with time 't' as
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