7. The equilibrium constant, Kc, for the reaction: E(s) + CO2 (g) 2 CO (g) is 0.

Question

7. The equilibrium constant, Kc, for the reaction: E(s) + CO2 (g) 2 CO (g) is 0.113 at 1100 K. What is the concentration of CO in a mixture at equilibrium if the CO2 concentration is 0.035 M? 8. IfK, 7.5 x 10-9 at 1000 K for the reaction: N2(g) +02(g) 2NO(g) (a) What is Kp at 1000 K for the reaction, and; (b) What is Kc for the reaction? ½N2(g) + ½ O2(g) --NO(g) at 1000 K? for the reaction 9. The equilibrium constant, Ke, H2(g) + 12(g) 2 HI(g) is 55 at 425 °c. If a 0.40 mol sample of HI was introduced into a 1.00 mL reaction vessel at 425 °C, what are the equibnum concentrations of H2, 12, and HI?

Explanation / Answer

7)

Kc = [CO]^2 / [CO2]

0.113 = [CO]^2 / (0.035)

[CO]^2 = 3.955*10^-3

[CO] = 0.063 M

Answer: 0.063 M

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