c. 3 NH3 (aq)+3 HO3 NH (aq) + 3 OH (aq) hea d. NH3 (aq) + H+ (aq) NH4+ (aq) 4. C

Question

c. 3 NH3 (aq)+3 HO3 NH (aq) + 3 OH (aq) hea d. NH3 (aq) + H+ (aq) NH4+ (aq) 4. Calcium carbonate (limestone) can decompose according to the following reaction. Suppose the Kp at a certain high temperature is 1.20. What will be the equilibrium pressure of CO, (g) if a sufficiently sizable slab of limestone is placed in a reaction chamber? CaCO3 (s) cao (s) + CO2 (g) 5. THE GREAT HALL OF LE CHATELIER'S PRINCIPLE: Carbon monoxide can be decomposed at a reasonable rate in the presence of a transition metal catalyst (such as iron or nickel) according to the following exothermic reaction 2 co (g) CO2 (g) + C (s) + Suppose this reaction is at equilibrium. Which way will this reaction shift iIf a. The concentration of CO (g)is increased: rght numb Of mo Tho roosentration of CO, (g) is decreased:gnt

Explanation / Answer

4)

CaCO3 (s) ...........> CaO(s) + CO2 (g)

Kp = PCO2

1.20 = PCO2.

PCO2 = 1.20 atm.

during writing of expression of Kp, consider the acitivity of solid = 1.

so equilibrium pressure of CO2 is 1.20 atm.

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