Question

Write notes on a. Bond angleb. Bond Enthalpyc. Bond Length and d. Bond order

Answer 1

A bond angle is the angle between twobonds originating from the same atom in a covalent species. eg. 1: eg. 2: Geometrically, a bond angle is an anglebetween two converging lines.

Bond enthalpy (also known as bondenergy) is defined as the amount of energy required to break one mole of the stated bond. For example, the bondenergy of a O-H single bond is 463 kJ/mol. ... Therefore, bond making is always an exothermic change (ΔH < 0).

The length of the bond is determined by the number of bonded electrons (the bond order). The higher the bond order, the stronger the pull between thetwo atoms and the shorter the bond length. Generally, the length of the bond between two atoms is approximately the sum of the covalent radii of the two atoms
Bond order is the number of chemical bonds between a pair of atoms. For example, in diatomic nitrogen N≡N the bond order is 3, in acetylene H−C≡C−H the bond order between the two carbon atoms is also 3, and the C−H bond order is 1. Bond order gives an indication of the stability of a bond.

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