the bond dissociation energies for Cl2,I2 and ICL are 242.3, 151.0 and 211.3 kJ /mole respectively . the enthalpy of sublimation of iodine is 62.8kL/mole .what is the standard enthalpy of formation of ICL(g) nearly equal to?

Dear student
1 half straight I subscript 2 space left parenthesis straight s right parenthesis space space plus 1 half space Cl subscript 2 space rightwards arrow with space on top space ICl space left parenthesis straight g right parenthesis increment straight H space equals space open square brackets 1 half increment straight H subscript straight I subscript 2 left parenthesis straight s right parenthesis space rightwards arrow straight I subscript 2 left parenthesis straight g right parenthesis end subscript space plus space 1 half straight mu subscript straight I minus straight I end subscript space plus 1 half straight mu subscript Cl minus Cl end subscript close square brackets space minus space left square bracket straight mu subscript straight I minus Cl end subscript right square bracket space space equals open parentheses 1 half space straight x space 62.76 space space plus 1 half space straight x space 151.0 space plus 1 half space straight x space 242.3 close parentheses space minus left parenthesis 211.3 right parenthesis space equals space 228.03 space minus 211.3 increment straight H space equals space 16.73
The answer is 16.8kJ/mol.
Regards

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