Question: please help,,,ive attached answer but the oxygen part - 3.5x2x498 is incorrect C2H6(g)+3.5O2(g)2CO2(g)+3H2O(g) a) Using the average bond enthalpies shown below, calculate the enthalpy of

C2H6(g)+3.5O2(g)2CO2(g)+3H2O(g) a) Using the average bond enthalpies shown below, calculate the enthalpy please help,,,ive attached answer but the oxygen part - 3.5x2x498 is incorrect

C2H6(g)+3.5O2(g)2CO2(g)+3H2O(g) a) Using the average bond enthalpies shown below, calculate the enthalpy of reaction (Hr) for the complete combustion of ethane. b) State if this is an exothermic or endothermic reaction and explain how you came to this concusion. C2H5+3.5O22CO+3H2ObondentenalpyHHbon=readecunts-Prods6413+38)+(3.52498)=2826+3486=6812kj2Praducts=(22709)+(32463)3196+2718=5974kj6812kj5474)kj838kj

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