The most important commercial process for generating hydrogen gas is the water-gas shift reaction:
CH4(g) + H2O(g) → CO(g) + 3H2(g)
Use tabulated thermodynamic data to find ΔG° for this reaction at the standard temperature of 25°C. i found this to be
=1.423×102 kJ

Now calculate ΔG°1200 for this process when it occurs at 1200 K

Question

The most important commercial process for generating hydrogen gas is the water-gas shift reaction: 
CH4(g) + H2O(g) → CO(g) + 3H2(g) 
Use tabulated thermodynamic data to find ΔG° for this reaction at the standard temperature of 25°C. i found this to be
=1.423×102 kJ

Now calculate ΔG°1200 for this process when it occurs at 1200 K

zpupster · Answer

B) Use the equation:
delta-G = -RT ln K
thus,
K = e^(-delta-G/(RT))
use T = 1200 K, R = 8.314472, and value of delta-G obtained in part A.