For the reaction,

CaCO₃ (s) <=> CaO (s) + CO₂ (g) , Kp = 0.5 atm at 25⁰C. If 20 gm of CaCO₃ is placed at 25⁰C in a closed container, calculate the amount of CO₂ gas produced when reaction comes to equilibrium.

(a) 20 gm

(b) 44 gm

(c) Data insufficient

(d) None of these

Please provide complete solution.

Dear Mr. Anurag

For given reaction: Kp=p_(CO2);  Cao and CaCo3 are in solid form and so there is not any partial pressure

Kp=nRT/V, but volume of the container is not given so data is not sufficient. Option C is correct.

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