Nitroglycerin Decomposes to Form Carbon Dioxide,water Vapor,nitrogen,and Oxygen $\Delta$ E for the Reaction Below

Nitroglycerin decomposes to form carbon dioxide,water vapor,nitrogen,and oxygen.Suppose 2.27 grams of nitroglycerin (C₃H₅N₃O₉,227 g/mol) decomposes at constant volume and the energy released is completely transferred to 1.50 kg water [c_v = 4.15 J/(g . ^oC) ].The temperature increases by 2.547°C.Calculate $\Delta$ E for the reaction below. 4 C₃H₅N₃O₉( ) $\to$ 12 CO₂(g) + 10 H₂O(g) + 6 N₂(g) + O₂(g)

A) "-1590 kJ"
B) "-6340 kJ"
C) "-6390 kJ"
D) "-2890 kJ"
E) "-6980 kJ"