MCQOPTIONS
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| 1. |
The bond dissociation energies of gaseous \[{{H}_{2}},\,C{{l}_{2}}\] and \[HCl\] are 104, 58 and 103 kcal respectively. The enthalpy of formation of \[HCl\] gas would be [MP PET 1997; MP PMT 1999, 2001] |
| A. | ? 44 kcal |
| B. | 44 kcal |
| C. | ? 22 kcal |
| D. | 22 kcal |
| Answer» D. 22 kcal | |