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Calculate P-Cl bond enthalpy Given : ...

Calculate P-Cl bond enthalpy
Given : `Delta_(f)H(PCl_(3),g)=306 " kJ"//"mol, "DeltaH_("atomization")(P , s) =314 " kJ"//"mol",`
`Delta_(f)H(Cl,g)=121 " kJ"//"mol"`

A

`1233.66kJ//mol`

B

`371kJ//mol`

C

`19kJ//mol`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
1
`P(s)+(3)/(2)Cl_(2)(g)rarr PCl_(3)(g)`
`306=(314+3xx1231)-[B.E.(P-Cl)xx3],`
`B.E.(P-Cl)=123.66kJ//mol`
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