Use the following data to calculate the molar enthalpy of combustion of ethane ,`C_(2)H_(6)`:
`2C_(2)H_(2)(g)+5O_(2)(g)to4CO_(2)(g)+2H_(2)O(l),`
`DeltaH=-2511KJ//mol`
`C_(2)H_(2)(g)+2H_(2)(G)to C_(2)H^(6)(g), DeltaH=-311KJ//mol`
`2H_(2)(g)+O_(2)(g)to 2H_(2)O(l), DeltaH=-484KJ//mol`