# Problem: Use Hess's law to calculate ΔG°rxn using the following information. H2O(g) + C(s) → CO(g) + H2(g)          ΔG°rxn = ? H2(g) + ½ O2(g)→ H2O(g)                 ΔG°rxn = -228.6 kJ C(s)+ ½ O2(g) → CO(g)                     ΔG°rxn = -137.2 kJ A) -365.8 kJ B) +365.8 kJ C) -91.4 kJ D) +91.4 kJ E) more information is required

###### FREE Expert Solution
83% (154 ratings)
###### Problem Details

Use Hess's law to calculate ΔG°rxn using the following information.
H2O(g) + C(s) → CO(g) + H2(g)          ΔG°rxn = ?
H2(g) + ½ O2(g)→ H2O(g)                 ΔG°rxn = -228.6 kJ
C(s)+ ½ O2(g) → CO(g)                     ΔG°rxn = -137.2 kJ

A) -365.8 kJ
B) +365.8 kJ
C) -91.4 kJ
D) +91.4 kJ
E) more information is required

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 is the difficulty of this problem?

Our tutors rated the difficulty ofUse Hess's law to calculate ΔG°rxn using the following infor...as low difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Jules took 3 minutes and 9 seconds to solve this problem. You can follow their steps in the video explanation above.