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How many kilojoules of heat are released when 0.72 mole of oxygen gas are used to combust methane?

CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (ℓ) + 890kJ

User Huppie
by
8.1k points

1 Answer

3 votes

0.72 mole of oxygen would produce 320.4 kJ of heat.

Step-by-step explanation:

CH₄ (g) + 2O₂ (g) → CO₂ (g) + 2H₂O (ℓ) + 890kJ

According to the equation,

2 moles of O₂ produces 890 kJ of heat

So, 0.72 moles of O₂ will produce:


= (890)/(2) X 0.72\\\\= 445 X 0.72\\\\= 320.4 kJ

Therefore, 0.72 mole of oxygen would produce 320.4 kJ of heat.

User Colidyre
by
8.0k points
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