When 1 mole of Fe2O3(s) reacts with H2(g) to form Fe(s) and H2O(g) by the following reaction,98.8 kJ of energy is absorbed. Fe2O3(s) + 3 H2(g) → 2 Fe(s) + 3 H2O(g) 
(A)
(B)
Is the reaction endothermic or exothermic,and which of the enthalpy diagrams above
Represents this reaction?
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