Question: how much energy is required to decompose 800 g of pcl3?
Answer: 4 pcl3(g) → p4(s) + 6 cl2(g) δh∘rxn = +1207 kj how much energy is required to decompose 800 of , according to the reaction below? the molar mass of is 137.32 and may be useful. 4 (g) (s) + 6 (g) = +1207 1.76×103 kj 4.53×103 kj 2.31×103 kj 6.72×103 kj 5.90×103 kj?