Question

Given the balanced equation: 4Fe(s) + 30₂(g) → 2Fe₂O₃(s) + 1640 kJ Which phrase best describes this reaction?

A) endothermic with AH = +1640 kJ
B) endothermic with AH =-1640 kJ
C) exothermic with AH= +1640 kJ
D) exothermic with AH = -1640 k

Answer 1

yeah the answer under the explanation

Step-by-step explanation:

The answer is (4) exothermic with ΔH = -1640 kJ. The 1640 kJ energy is at the right side of equation means that it releases energy. The enthalpy change means the energy of production minus the energy of reactants. If it is exothermic, the ΔH < 0.