Consider the Combustion Reaction of Propane: C₃H₈(g)+ 5 O₂(g)→ 3

question 57

Multiple Choice

Consider the combustion reaction of propane: C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(g) ,where ΔH = -531 kcal. If 6.70 × 10⁴ kcal of energy is released in the reaction,how many grams of oxygen were consumed?

• A)63.1 g of O₂
• B)2.02 × 10⁴ g of O₂
• C)12.6 g of O₂
• D)404 g of O₂