At 298 K the reaction has an equilibrium constant

CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

At 298 K the reaction CO(g)+12 O2(g)→CO2(g)\mathrm{CO}(g)+\tfrac12\,\mathrm{O_2}(g) \rightarrow \mathrm{CO_2}(g) has an equilibrium constant Kp=1.5×1010K_p = 1.5\times10^{10}. What is KpK_p for the reaction 2 CO2(g)→2 CO(g)+O2(g)2\,\mathrm{CO_2}(g) \rightarrow 2\,\mathrm{CO}(g) + \mathrm{O_2}(g) at the same temperature? (a) 6.7×10−116.7\times10^{-11} (b) 4.4×10−214.4\times10^{-21} (c) 1.3×10−101.3\times10^{-10} (d) 2.3×10202.3\times10^{20}

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