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ionisation enthalpy is 490 kj/mol.electron gain enthalpy is 348 kj/mol.lattice enthalpy is 757 kj/mol.find out the amount of energy released in the formation of 1 mole of Na ion in cristilined state from gaseous Na atom to Cl atom

irfan , 6 Years ago
Grade 11
anser 1 Answers
Shivangi Khatter

Last Activity: 6 Years ago

dear student
according to born haber cycle, total energy remains conserved
therefore,\DeltaH = 490 – 348 – 757 = – 615 KJ/mol
note that as per the facts electron gain enthalpy and lattice energy is negative

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