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    The question is: the enthalpy change of combustion for methane is -890kJmol-1 calculate the energy released when 3.2g of methane burn completely.

    right so I know you need to work out the reaction first which is
    CH4 +2 O2 ---> CO2 +2 H2O
    but what do you do after that?



    btw, Happy New Year guysss!
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    (Original post by Prista)
    The question is: the enthalpy change of combustion for methane is -890kJmol-1 calculate the energy released when 3.2g of methane burn completely.

    right so I know you need to work out the reaction first which is
    CH4 +2 O2 ---> CO2 +2 H2O
    but what do you do after that?



    btw, Happy New Year guysss!
    You are given the energy change PER MOLE so find out how many moles is 3.2g
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    (Original post by charco)
    You are given the energy change PER MOLE so find out how many moles is 3.2g
    Yeah so the number of moles = 3.2/16 = 0.2 but I don't know what to do after that :/


    This was posted from The Student Room's iPhone/iPad App
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    (Original post by Prista)
    Yeah so the number of moles = 3.2/16 = 0.2 but I don't know what to do after that :/


    This was posted from The Student Room's iPhone/iPad App
    Well, if 1 mole releases 890 kJ of energy how much energy will 0.2 moles release?
 
 
 
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