We are considering the decomposition of barium carbonate to calculate the equilibrium pressure of CO2 at 298K.
The equation for the decomposition of BaCO3 is the following:
BaCO3 (s) → BaO (s) + CO2(g)
The equilibrium expression for the reaction is:
Solids are not included in the equilibrium expression
The Standard Gibbs Free Energy of formation of a compound is a change of Gibbs Free energy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element at 25C and 100 kpa).
(Data from books and the internet)
∆Gof (BaO) = -525.1 kJ/mol
∆Gof (CO2) = -394.4 kJ/mol
∆Goi(BaCO3) = -1134.4 kJ/mol
The formula for the Gibbs Standard Free energy is given as:
Consider the decomposition of barium carbonate: BaCO3 (s) ⇄ BaO(s) + CO2 (g)
Using data from Appendix C in the textbook, calculate the equilibrium pressure of CO2 at 298 K.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Gibbs Free Energy concept. You can view video lessons to learn Gibbs Free Energy. Or if you need more Gibbs Free Energy practice, you can also practice Gibbs Free Energy practice problems.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.