Question

Is the following reaction spontaneous at 298 K? (Answer by calculating delta G)

H2O(g)+C(s) -> CO(g)+ H2(g)

Delta H= 131.3 kJ/mole
Delta S = 134 j/mole K

Answer 1

Answer:

The reaction H2O(g)+C(s) -> CO(g)+ H2(g) is NOT spontaneous because its ΔG =  91 kJ/moles

Explanation:

ΔG is calculated by ΔH - TΔS

ΔG = ΔH - TΔS

ΔG = 131.3 kJ/mole - 298K . 0,134kJ/mole K

ΔG = 91.068 kJ/moles

Be careful with the ΔS, because you have J, and in ΔH, you have kJ