Carbon monoxide is oxidized in the atmosphere according to the overall process CO(g)…
CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Carbon monoxide is oxidized in the atmosphere according to the overall process
CO(g) + 1/2 O2(g) ⇌ CO2(g)
The following two elementary equilibria are tabulated at 298 K:
(1) C(s) + 1/2 O2(g) ⇌ CO(g) K1=1.2×103
(2) C(s) + O2(g) ⇌ CO2(g) K2=3.4×10−2
Determine the equilibrium constant, K, for the overall process at 298 K. Express your answer in scientific notation with two significant figures.