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| 1. |
The equation \[\frac{1}{2}{{H}_{2}}+\frac{1}{2}C{{l}_{2}}\to HCl\] (\[\Delta {{H}_{298}}=-22060\,kcal\]) means [CMC Vellore 1991] |
| A. | The heat absorbed when one gram molecule of \[HCl\] is formed from its elements at \[{{25}^{o}}C\] is 22.060 kcal |
| B. | The heat given out when one gram molecule of \[HCl\] is formed from its elements at 298 K is 22.060 kcal |
| C. | The heat absorbed when one atom of hydrogen reacts with one atom of chlorine to form one molecule of \[HCl\] at \[{{25}^{o}}C\] and one atmospheric pressure is 22.060 kcal |
| D. | The heat absorbed when one gram equivalent of \[HCl\] is formed from its elements at 298 K is 22.060 kcal |
| E. | The intrinsic heat of one molecule of \[HCl\] is 22.060 kcal more than the intrinsic heats of one atom of hydrogen and one atom of chlorine |
| Answer» C. The heat absorbed when one atom of hydrogen reacts with one atom of chlorine to form one molecule of \[HCl\] at \[{{25}^{o}}C\] and one atmospheric pressure is 22.060 kcal | |