Answer to Question #230983 in General Chemistry for Mickayla Ennis

Question

Use the following thermodynamic data at 298 K to determine the equilibrium constant at this temperature for the reaction of iron in steam to form hydrogen and iron(III) oxide.

2Fe(s) + 3H₂O(g)   3H₂(g) + Fe₂O₃(s)

Substance: ΔH°_f (kJ/mol): ΔG°_f (kJ/mol): S°(J/K·mol)

Fe(s): 0: 0: 27

H₂O(g): -242: -229: 189

H₂(g): -0: -0: 131

Fe₂O₃(s): -824: -742: 87

a)1.8 x 10^-3

b)1.58 x 10²²

c)4.36 x 10^-9

d)4.36 x 10⁹

Answer 1

c)4.36 x 10-9