Question 21How much heat will be liberated if 8g of hydrogen burns in excess oxygen according to the following equation? 2H2 + O2→ 2H2O,∆H = -571.7KJ (H = 1)A.1.42.9KJB.571.7KJC.1143.4KJD.285.9KJE.2286.8KJObjective Show full explanation