The Bond Enthalpy of the Br-Cl Bond Is Equal to ΔH°_rxn

question 36

Multiple Choice

The bond enthalpy of the Br-Cl bond is equal to ΔH°_rxn for the following reaction. BrCl(g) → Br(g) + Cl(g)
Using the following data,what is the bond enthalpy of the Br-Cl bond?
Br₂(l) → Br₂(g) ΔH°_rxn = 30.91 kJ/mol
Br₂(g) → 2Br(g) ΔH°_rxn = 192.9 kJ/mol
Cl₂(g) → 2Cl(g) ΔH°_rxn = 243.4 kJ/mol
Br₂(l) + Cl₂(g) → 2BrCl(g) ΔH°_rxn = 29.2 kJ/mol

• A)219.0 kJ/mol
• B)203.5 kJ/mol
• C)14.6 kJ/mol
• D)438.0 kJ/mol
• E)407.0 kJ/mol

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