1.
The equilibrium constant for the reaction N2(g)+O2(g)⇌2NO(g)\mathrm{N_2(g) + O_2(g) \rightleftharpoons 2NO(g)} is 4×10−44 \times 10^{-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: