Carbon Monoxide and Oxygen Gas React to Form Carbon Dioxide

Multiple Choice

Carbon monoxide and oxygen gas react to form carbon dioxide.How much heat is released when 89.5 grams of O₂ (g) reacts with excess CO? ΔH° = -482 kJ.

A) 1.35 × 10^{3 kJ}
B) 2.70 × 10³ kJ
C) 1.35 × 10^-3 kJ
D) 674 kJ
E) 4.31 × 10⁴ kJ