For the reaction, C7H8(l) + 9O2(g)  7CO2(g) + 4H2O(l), calculated heat of reaction is 232.6 kJ/mol — AITS & Test Series Chemistry Question

Question

For the reaction, C7H8(l) + 9O2(g)  7CO2(g) + 4H2O(l), calculated heat of reaction is 232.6 kJ/mol and observed heat of reaction is 50.4 kJ/mol, then the resonance energy is (A) – 182.2 kJ / mol (B) + 182.2 kJ / mol (C) 172 kJ/ mol (D) None of these