Given:
2C6H6 (l) + 15O2 (g) → 12CO2 (g) + 6H2O (l) ΔG° = -6399 kJ
C (s) + O2 (g) → CO2 (g) ΔG° = -394 kJ
H2 (g) + 1/2O2 (g) → H2O (l) ΔG° = -237 kJ
Overall Reaction: 6C (s) + 3H2 (g) → C6H6 (l)
Rearrange the reaction and adjust the ΔG° value accordintly:
Reverse the reaction, divide by 2, and change the sign of ΔG°:
6CO2 (g) + 3H2O (l) → C6H6 (l) + 15/2O2 (g) ΔG° = 6399 kJ/2 = 3199.5 kJ
Multiply the reaction and ΔG° by 6:
6C (s) + 6O2 (g) → 6CO2 (g) ΔG° = 6(-394 kJ) = -2364 kJ
Multiply the reaction and ΔG° by 3:
3H2 (g) + O2 (g) → 3 H2O (l) ΔG° = 3(-237 kJ) = -711 kJ
Adding the reaction:
Given the following data:
2C6H6 (l) + 15O2 (g) → 12CO2 (g) + 6H2O (l) ΔG° = -6399 kJ
C (s) + O2 (g) → CO2 (g) ΔG° = -394 kJ
H2 (g) + 1/2O2 (g) → H2O (l) ΔG° = -237 kJ
calculate ΔG° for the reaction
6C (s) + 3H2 (g) → C6H6 (l)
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 Randles' class at UCF.
What textbook is this problem found in?
Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl Atoms 1st 2nd Edition practice problems.