Fe3O4(s) reacts with H₂(g) to form Fe(s) and H₂O(g)

Last updated: 7/31/2022

Fe3O4(s) reacts with H₂(g) to form Fe(s) and H₂O(g) according to the following equation. Fe3O4(s) + 4H₂(g) + 36.1 kcal- →3Fe(s) + 4H₂O(g) Is this reaction endothermic or exothermic? Is energy evolved or absorbed when the reaction takes place? How many kcal of energy is this when 1.54 mol of Fe3O4(s) reacts?