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When 1 mol of crystalline \)NaCl \)is obtained from sodium and Cl2 gas. 410 kJ of heat is released. The heat of sublimation of Na metal is 108 kJ mol–1 and Cl–Cl bond enthalpy is 242 kJ mol–1 . If the ionisation energy of Na is 493k kJ mol–1 and electron gain enthalpy of chlorine is 368 kJ mol–1 , the lattice energy of NaCl is |
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Answer» When 1 mol of crystalline \)NaCl \)is obtained from sodium and Cl2 gas. 410 kJ of heat is released. The heat of sublimation of Na metal is 108 kJ mol–1 and Cl–Cl bond enthalpy is 242 kJ mol–1 . If the ionisation energy of Na is 493k kJ mol–1 and electron gain enthalpy of chlorine is 368 kJ mol–1 , the lattice energy of NaCl is |
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