Using the Following Data Reactions Calculate the Energy of an H-Cl Bond

question 38

Multiple Choice

Using the following data reactions: $$\begin{array} { l l } & \Delta H ^ { \circ } ( \mathrm { kJ } / \text { mol-rxn) } \\\mathrm { H } _ { 2 } ( g ) + \mathrm { Cl } _ { 2 } ( g ) \rightarrow 2 \mathrm { HCl } ( g ) & - 184 \\\mathrm { H } _ { 2 } ( g ) \rightarrow 2 \mathrm { H } ( g ) & 432 \\\mathrm { Cl } _ { 2 } ( g ) \rightarrow 2 \mathrm { Cl } ( g ) & 239\end{array}$$
Calculate the energy of an H-Cl bond.

• A) 92 kJ/mol
• B) 855 kJ/mol
• C) 487 kJ/mol
• D) 428 kJ/mol
• E) 244 kJ/mol

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