The enthalpy of atomisation of PCl 3 (g) is 972 kJ/mol: PC l 3 ( g ) → P ( g ) + 3Cl ( g ) What is the average P-Cl bond energy?

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The enthalpy of atomisation of PCl₃(g) is 972 kJ/mol:

$PC l_{3} (g) \to P (g) + 3Cl (g)$ What is the average P-Cl bond energy?

Answer:

Solution:

Three P-Cl bonds are broken in the atomisation.

Average P-Cl = 972/3 = 324 kJ/mol.

Answer: (D).

Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Bond Enthalpy

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