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The reaction of iron with hydrochloric acid is represented by the following thermochemical equation.Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g); ΔH° = –87.9 kJIf, in a particular experiment, 1.56 kJ of heat was released at constant pressure, what volume of H2(g), measured at STP, was produced? (R = 0.0821 L • atm/(K • mol))