question_answer

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