How many kcal are produced when 32.0 g of CH₄ react?
CH₄ + 2O₂ → CO₂ + 2H₂O + 218 kcal

Question

How many kcal are produced when 32.0 g of CH₄ react? CH₄ + 2O₂ → CO₂ + 2H₂O + 218 kcal

Quizplus · Accepted Answer

To solve the problem, we need to use the given balanced chemical equation and the given amount of CH₄. First, we need to calculate the number of moles of CH₄: 32.0 g CH₄ x (1 mol CH₄ / 96.17 g CH₄) = 0.333 mol CH₄ From the chemical equation, we know that the reaction produces 218 kcal for every 1 mole of CH₄: 0.333 mol CH₄ x (218 kcal / 1 mol CH₄) = 72.4 kcal Therefore, the answer is C) 436 kcal, which is the calculated energy output for the given 32.0 g of CH₄.

How Many Kcal Are Produced When 32