iron metal can be produced by reducing Fe(III) oxide with hydrogen
Fe2O3(s) + 3H2 (g) ---- 2Fe(s) + 3H2O(g)
delta H =98.8 Kj and delta S =141.5 J/K
which is correct for above reaction
(1) spontaneous above 298 K (2) spontaneous below 298 K
(3) spontaneous below 698 K (4) spontaneous above 698 K

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