What Quantity,in Moles,of Oxygen Is Consumed When 717

question 91

Multiple Choice

What quantity,in moles,of oxygen is consumed when 717.4 kJ of energy is evolved from the combustion of a mixture of H₂(g) and O₂(g) ?
H₂(g) +
O₂(g) → H₂O(l) ; ΔH° = -285.8 kJ

• A)1.255 mol
• B)2.519482 mol
• C)0.1991 mol
• D)1.755 mol
• E)0.7559321 mol