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Chapter 3: 11th Chemistry Volume 2 · Part 2 · Chemistry Volume 2 · EN medium
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Potential energy (KJ mol - ) Fig . (b) VB theory for the formation of hydrogen molecule At this stage, there is a maximum overlap between the atomic orbitals of H a and H b , and the atoms H a and H b are now said to be bonded together by a covalent bond. The internuclear distance at this stage gives the H-H bond length and is equal to pm. The liberated energy is kJ mol - and is known as bond energy. Since the energy is released during the bond formation, the resultant molecule is more stable. If the distance between the two atoms is decreased further, the repulsive forces dominate the attractive forces and the potential energy of the system sharply increases
📖 Namma Kalvi 11th Chemistry Textbook Volume 2 English Medium · Page 90
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Potential energy (KJ mol - ) Fig . (b) VB theory for the formation of hydrogen molecule At this stage, there is a maximum overlap between the atomic orbitals of H a and H b , and the atoms H a and H b are now said to be bonded together by a covalent bond. The internuclear distance at this stage gives the H-H bond length and is equal to pm. The liberated energy is kJ mol - and is known as bond energy.
Since the energy is released during the bond formation, the resultant molecule is more stable. If the distance between the two atoms is decreased further, the repulsive forces dominate the attractive forces and the potential energy of the system sharply increases
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