1.

For a reversible reaction A underset(k_(2)=2 xx 10^(2)s^(-1))overset(k_(1)=4xx10^(2)s^(-1))hArr B initial concentration of A is 21 mol L^(-1) . Select the correct statement:

Answer»

Equilibrium CONCENTRATION of A is 14 MOL `L^(-1)`
Equilibrium conentration of B is 14 mol `L^(-1)`.
The concentration of A reduce by 50% of equilibrium concentration after 11.55 sec .
The concentration of A reduce to 50% after 23.1 sec.

Answer :B::C::D


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