Tlong di jawab no 5 dan 7, please

C₂H₅OH + ⁷/₂O₂ ⇒ 2CO₂ + 3H₂O ΔH = -1224.1 kJ/mol

ΔH = (2 x ΔHf CO₂ + 3 x ΔHf H₂O) - ΔHf C₂H₅OH = -1224.1 kJ/mol

n = 2.3/46 = 0.05 mol ⇒ ΔH = -1224.1 * 0.05 = -61.205 kJ/mol ⇒ Jawab