Solution: Water gas, a commercial fuel, is made by the reaction of hot coke with steam. C (s) + H2O (g) → CO (g) + H2 (g) When equilibrium is established at 800°C the concentrations of CO, H2, H2O are 4.00 x

Water gas, a commercial fuel, is made by the reaction of hot coke with steam.

C (s) + H₂O (g) → CO (g) + H₂ (g)

When equilibrium is established at 800°C the concentrations of CO, H₂, H₂O are 4.00 x 10 ^-2, 4.00 x 10 ^-2, and 1.00 x 10 ^-2 mole/liter, respectively. What is the value of ΔG° for this reaction at 800°C?

A. 109 kJ

B. -43.5 kJ

C. 193 kJ

D. 16.3 kJ

E. none of these