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7. CO₂ emissions per unit of energy. Natural Gas is sold on the Higher Heating Value (HHV) basis. Use HHV for this calculation. LHV (MJ/kg) HHV (MJ/kg) 55.5 46.4 Natural Gas

(CH) 50 Gasoline 43.4 a. How much CO₂ is emitted per MJ of natural gas (CH₂) combusted? b. How much CO₂ is emitted per MJ of gasoline (~ octane = CH₁) combusted?

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