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A natural gas is analysed and found to consist of 87.5 vol % methane, 7.0% ethane,2.0% propane, and 3.5% N2 (non-combustible). Calculate the higher heating value (HHV) of this fuel

in kJ/mol. Calculate the lower heating value (LHV) of this fuel in kJ/mol. Calculate the lower heating value (LHV) of the fuel in kJ/kg. State in your own words the meaning of the quantity calculated in part (c).

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