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Answer -562 kj/mol
Answer
Calculate the net energy change in kilojoules per mole that takes place on formation of from the elements:? K(s)+ 1/2 F2--->KF (s) The following information is needed: Heat of sublimation for K(s)=89.2 kj/mol ;E for F(g)=-328 kj/mol Bond dissociation energy for F2(g) for 158 kj/mol; E for K(g)=418.8 kj/mol Electrostatic interactions in KF(s) =-821 kj/mol
Calculate the net energy change in kilojoules per mole that takes place on formation of
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