The Following Molecules Contain Only Single Bonds $\rarr$ NF₃(g) + 3 HF(g)The Bond Energies Are: N - H

question 1

Multiple Choice

The following molecules contain only single bonds. NH₃(g) + 3F₂(g) $\rarr$ NF₃(g) + 3 HF(g) The bond energies are: N - H 391 kJ/mol;F - F 158 kJ/mol;N - F 272 kJ/mol;H - F 566 kJ/mol.Which is the heat evolved or absorbed per mole of NH₃ that reacts with F₂?

• A)+289 kJ/mol
• B)+867 kJ/mol
• C)-289kJ/mol
• D)-867 kJ/mol

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