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NEETChemistryChemical Bonding and Molecular Structure

How is the mean or average bond enthalpy calculated in polyatomic molecules?

Options

  1. ABy measuring the temperature change
  2. BBy dividing the total bond dissociation enthalpy by the number of bonds broken
  3. CBy counting the total number of atoms
  4. DBy calculating the bond length

Correct answer

B. By dividing the total bond dissociation enthalpy by the number of bonds broken

Step-by-step solution

The mean or average bond enthalpy in polyatomic molecules is obtained by dividing the total bond dissociation enthalpy by the number of bonds broken.

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