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For the reaction involving decomposition...

For the reaction involving decomposition of ammonia to form hydrogen and nitrogen gases, the equilibrium constant has the units `("bar")^n`. Then n is

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The correct Answer is:
2
`2NH_3 So, `K_p = (p_(N_2) xx p_(H_2)^3)/(p_(NH_3)^2) = (("bar") xx ("bar")^3)/(("bar")^2) = ("bar")^2`
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