NEET Chemistry Chemical Kinetics Questions Solved

BOARD

Rate constant k for a first order reaction has been found to be 2.54× 10-3 sec-1. Calculate its 3/4th life. (log 4 = 0.6020).

For first order reaction: t34=2.303klog 4

                                       =2.3032.54×10-3 sec-1×0.6020 = 545.8 sec.

                                       = 9.09 min

 

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