For the reaction A+2B→products (started with concentrations taken in stoichiometric proportion), the experimentally determined rate law is: −d[A]dt=k[A][B]The half life time of the reaction would be:
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a
0.693k
b
0.6931/k
c
0.6932k
d
not defined
answer is C.
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Detailed Solution
A+2B→productsa−x 2a−2x −d[A]dt=k[A][B]Reactant are in their stoichiometric proportion ⇒−d(a−x)dt=k(a−x)2(a−x)dxdt=2k(a−x); t1/2=0.6932k