Which one of the following has greater bond energy?
Correct answer: A. HF
- A. HF
- B. HCl
- C. HBr
- D. HI
Explanation
HF has greater bond energy than HCl. The bond energy of HF is 568 kJ/moL, while the bond energy of HCl is 431 kJ/moL.
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About Bond Energy
Bond energy is the energy needed to break one mole of a particular covalent bond in gaseous molecules, while bond formation releases energy. Reaction enthalpy is estimated by subtracting the total energy of bonds formed from bonds broken, with attention to average bond energies and their limitations for specific molecules.
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