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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

The heat of atomization of is and that of is . The energy of P-P bond is

Answer: (B)

Solution

P-H bond energy = 228/3 = 76 kcal; P2H4 has one P-P and four P-H bonds, so 355 = E(P-P) + 4 x 76 and E(P-P) =

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Question ID VK-064481