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NEET2020ChemistryStructure of AtomActual

The potential energy ( y ) curve for H 2 formation as a function of internuclear distance ( x ) of the H atoms is shown below. The bond energy of H 2 is :

Options

  1. A( b - a )
  2. B( c - a ) 2
  3. C( b - a ) 2
  4. D( c - a )

Correct answer

A. ( b - a )

Step-by-step solution

As per the given curve bond energy is the amount of energy is released during the bond formation is i.e. = Final - initial So, Potential energy of two H atoms at infinite distance (initial) (= a ) and Potential energy of two H atoms at distance equal to bond length (final) (= b ) Then, ( B.E. =(b-a) )

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