Use the Bond Energies Below to Determine Whether the Following $\mathrm { H } _ { 2 }$

question 64

Multiple Choice

Use the bond energies below to determine whether the following reaction is exothermic or endothermic: $\mathrm { H } _ { 2 }$ + $\mathrm { Cl } _ { 2 }$ ? 2 HCl H-H (bond energy: 436 kJ/mol)
Cl-Cl (bond energy: 243 kJ/mol)
H-Cl (bond energy: 431 kJ/mol)

• A)Exothermic with more than 50 kJ of energy released.
• B)Endothermic with more than 50 kJ of energy absorbed.
• C)Exothermic with less than 50 kJ of energy released.
• D)Endothermic with less than 50 kJ of energy absorbed.

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