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The equilibrium constant for the reactio...

The equilibrium constant for the reaction `N_2(g) + O_2(g) hArr 2NO(g)` is `4xx10^(-4)` at 2000 K. In presence of a catalyst the equilibrium is attained 10 times faster . Therefore , the equilibrium constant , in presence of the catalyst at 2000 K is

A

`4xx10^(-4)`

B

`4xx10^(-3)`

C

`4xx10^(-5)`

D

`2.5xx10^(-4)`

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