A) + 540.3
B) +727.3
C) -166.9
D) +19.8
Correct Answer: D
Solution :
\[\Delta S{}^\circ =2S{{{}^\circ }_{HCl}}-(S{{{}^\circ }_{{{H}_{2}}}}+S{{{}^\circ }_{C{{l}_{2}}}})\] \[=2\times 186.7-(130.6+223.0)\] \[=19.8\,J{{K}^{-1}}mo{{l}^{-1}}\]You need to login to perform this action.
You will be redirected in
3 sec