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    use the following data to calculate a value for Xe-f bond enthalpy in Xef4

    Xe +2F2 ---> Xef4 enthalpy change= -252 kjmol-1
    F2-----> 2F enthalpy change = +158 kj mol-1

    Need help with this question, can anyone help ASAP
    Thanks
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    _ktanya

    Hi there . What have you tried?
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    (Original post by _ktanya)
    use the following data to calculate a value for Xe-f bond enthalpy in Xef4

    Xe +2F2 ---> Xef4 enthalpy change= -252 kjmol-1
    F2-----> 2F enthalpy change = +158 kj mol-1

    Need help with this question, can anyone help ASAP
    Thanks
    This is an easy question ...
    Use Hess's Law diagram....then it is soo easy :P
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    (Original post by Kvothe the arcane)
    _ktanya

    Hi there . What have you tried?
    I used hess's law and it worked got the answer as 142
 
 
 
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