Answer to Question #55402 in General Chemistry for kaitlyn

Question #55402

How much heat is produced by the complete combustion of 244 g of CH4?
CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ

Expert's answer

Q = n (-ΔH_∘rxn) = m M^-1 (-ΔH_∘rxn) = 244 g (-802.3 kJ mol^-1) /16.04 g mol^-1 = 12205 kJ = 12.2 MJ

Answer: 12.2 MJ

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25.02.17, 06:11

How much heat is produced by the complete combustion of 241 g of CH4? CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ