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[" 34.The enthalpy of combustion of "H(2...

[" 34.The enthalpy of combustion of "H_(2(y))" to give "H_(2)O_((y))],[" is "-249KJmol^(-1)" and bond enthalpies of "H-H],[" and "O=O" are "433KJmol^(-1)" and "492KJmol^(-1)],[" respectively,The bond enthalpy of "O-H" is "],[[1)464KJmol^(-1)," 2) "-464KJmol^(-1)],[" 3) "232KJmol^(-1)," 4) "-232KJmol^(-1)]]

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