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The heats of formation of PCl_(3) and PH_(3) are -306 kJ"mole"^(-1) and +8 kJ"mole"^(-1) respectively and the heats of atomization of phosphorus, chlorine and hydrogen are given by P_(s) to P_(g), DeltaH = 314 kJ"mole"^(-1) Cl_(2)(g) to 2Cl_(g), DeltaH = 242 kJ "mole"^(-1) H_(2)(g) to 2H_(2), DeltaH= 433 KJ "mole"^(-1) Calculate E_(p-cl) and E_(P-H). |
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