Question

The enthalpy change required to break particular covalent bond in one mole of gaseous molecule to produce gaseous atoms and/or radicals, is called _ _ _ _ _ _ _ _ _ _ _ _
1)enthalpy of solution
2)enthalpy of combustion
3)bond enthalpy
4)enthalpy of atomisation​

Answer 1

Answer:

enthalpy of atomisation.......

Answer 2

Option 3. The enthalpy change required to break a particular covalent bond in one mole of the gaseous molecule to produce gaseous atoms and/or radicals is called bond enthalpy.

1. The bond enthalpy has typical units are kilocalories per mole (kcal/moll) and kilojoules per mole (kJ/mol).

2. Example- values in 410 kJ/mol for the bond C-H and 945 kJ/mol for the bond N≡N. From this, we can get that it is very easy to observe triple bonds are much more powerful than single bonds.

3. Bond enthalpy is known as the enthalpy change of one specific bond in a molecule.

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