Question

Consider the decomposition of CaCO₃(s) into CaO(s) and CO₂(g). What is the equilibrium partial pressure of CO₂ at room temperature?

a) Depends on the reaction conditions
b) 1 atm
c) 0.5 atm
d) Cannot be determined without additional information

Answer 1

The equilibrium partial pressure of CO₂ for the decomposition of CaCO₃ at room temperature d) cannot be determined without additional information such as reaction conditions and equilibrium constants.

Step-by-step explanation:

When considering the decomposition of CaCO₃ (calcium carbonate) into CaO (calcium oxide) and CO₂ (carbon dioxide), it is important to note that the equilibrium partial pressure of CO₂ at room temperature cannot be determined without additional information.

The value of this pressure depends on specific reaction conditions such as temperature, pressure, and the equilibrium constant for the reaction at that temperature.

Moreover, determining if the reaction is endothermic or exothermic is important as it can influence the direction in which the equilibrium shifts with changes in temperature.