2CO(g) + O2(g) → 2CO2(g) Given that ΔH[CO]is -110.4 kJmol-1 and ΔH[CO2] is -393.0 kJmol-1,…

2CO_(g) + O_2(g) → 2CO_2(g)
Given that ΔH[CO]is -110.4 kJmol^-1 and ΔH[CO₂] is -393.0 kJmol^-1, the energy change for the reaction above is

Correct Answer: Option B

Explanation

Energy change (ΔH) = 2ΔHCO₂ – (2ΔHCO + ΔHO)
= 7x – 393 – (7 * 110.4 + 0)
= -393 + 110.4 = -282.6 kJ