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Question
The equilibrium constant for the reaction N2(g)+O2(g)⇋2NO(g) is 4×10−4 at 2000 K. In the presence of a catalyst, the equilibrium is attained three times faster. The equilibrium constant in the presence of the catalyst at 2000 K is:
The equilibrium constant for the reaction N2(g)+O2(g)⇋2NO(g) is 4×10−4 at 2000 K. In the presence of a catalyst, the equilibrium is attained three times faster. The equilibrium constant in the presence of the catalyst at 2000 K is:
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Solution
The correct option is B 4×10−4
When a catalyst is present, the equilibrium is achieved faster but the magnitude of equilibrium constant remains unaffected, as it affects equally the rate of both the forward and backward reaction. Thus, the value of the equilibrium constant in the presence of a catalyst is the same as in the absence of a catalyst, i.e., 4×10−4.
When a catalyst is present, the equilibrium is achieved faster but the magnitude of equilibrium constant remains unaffected, as it affects equally the rate of both the forward and backward reaction. Thus, the value of the equilibrium constant in the presence of a catalyst is the same as in the absence of a catalyst, i.e., 4×10−4.
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