Question

Why it is required to take average bond enthalpy in case of polyatomic molecules? Explain with example​

Answer 1

it is defined as the amount of energy needed to break a mole of bond of a certain type between two atoms in a gaseous state. ... In case of polyatomic molecules because of its differences in bond enthalpy polyatomic molecules have average bond enthalpy. As electronegativity atoms increases the bond enthalpy also increases.

Answer 2

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• It is defined as the amount of energy needed to break a mole of bond of a certain type between two atoms in a gaseous state.
• In case of polyatomic molecules because of its differences in bond enthalpy polyatomic molecules have average bond enthalpy. As electronegativity atoms increases the bond enthalpy also increases.