Answer to Question #176529 in General Chemistry for Emer Lindsay

Question

How would you change the volume of the following reaction to increase the yield of the products? (Recall: If the volume becomes smaller and pressure is higher, the reaction shifts so that the total number of gas molecules decreases. The equilibrium position shifts to relieve the pressure by reducing the number of moles of gas)

Hint: we can assume here, that only gas can yield a distinct volume change in response to pressure

                 CaCO₃(s) = CaO(s) +CO₂(g)

Answers:

A. Since CO2 is the only gas in the product. To make more CO2, we increase the volume (and decrease the pressure.)

B. Since CO2 is the only gas in the product. To make more CO2, we decrease the volume (and increase the pressure.)

C. Since CO2 is the only gas in the product. To make more CO2, make no changes, and let reaction proceed as is.

D. None of the above

Answer 1

A. Since CO2 is the only gas in the product. To make more CO2, we increase the volume (and decrease the pressure.)