Answer to Question #186830 in General Chemistry for Jose

Question

1.       For the system, 2 CO2(g) ⇌ 2 CO (g) + O2 (g), the reaction is endothermic. Assume that a scientist has an equilibrium mixture of these substances. 

a. If oxygen was removed from the equilibrium mixture, (i) what would happen to the number of moles of CO present at equilibrium and (ii) what would happen to the value of the equilibrium constant?

b. If the temperature of the system were decreased, (i) what would happen to the number of moles of CO present at equilibrium and (ii) what would happen to the value of the equilibrium constant?

Answer 1

If oxygen is removed more CO is produced and equilibrium shifts to the right

If the temperature is decreased less CO is formed and the equilibrium shifts to the left