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16. What is the lattice energy of CaO? A. -3414 kJ B -2144 C.-2667 kg D4139741 -E 73028 RJ Cas-Calg) Calg) - Ca (g) + Ca(g)
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Answer #1

At first we draw the Born Haber cycle for CaO, and then write the equations and their energies in the order of sequence of reactions taking place. The energy for atomisation of Oxygen is halved, and then all the energies are added to put equal to the energy of formation of CaO. The detailed solution is given below:

Answer: Boru Haber Cycle for cao - caz+y+ 0229) Cat(g) + 2e toeg2 and election 2nd suisation offa (101) 1st election affinitSo. -635 = 193 +249 +590 ft lolo -1414878 + AH Lattice → AH came = -635-193-24.9-590-1010-878 +141 At lattice = -3414 kJ

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