Question
Question: For the reaction, C<sub>7</sub>H<sub>8</sub>(l) + 9O<sub>2</sub>(g) → 7CO<sub>2</sub>(g) + 4H<sub>2...
For the reaction,
C7H8(l) + 9O2(g) → 7CO2(g) + 4H2O(l), the calculated heat of reaction is 232 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
Answer
– 182.2 kJ / mol
Explanation
Solution
As we know that,
Resonance energy
= ∆H0 (observed) – ∆H0 ( calculated)
= (50.4 – 232.6) kJ / mol = – 182.2 kJ mol–1