Phosphoric acid can be prepared by the reaction of P₄O₁₀ with water as given by the following balanced chemical equation.
P₄O₁₀(s) + 6H₂O(l)→4H₃PO₄(aq)
When 25.8 g of H₃PO₄ (98.0 g/mol) is produced, 10.9 kJ of heat is evolved. Calculate ∆ for the overall reaction.
A. -27.4 kJ
B. 105 kJ
C. -166 kJ
D. 41.6 kJ