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The heats of formation of PCl(3) and PH(...

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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The correct Answer is:
319.33 kJ
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