The intermolecular potential energy for the m | vedclass

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(C) From the given graph,the potential energy of the $A-B$ molecule is the most negative (minimum). This indicates that the $A-B$ bond is the most sta

Vedclass · Accepted Answer

$A-B$ has the stiffest bond

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(C) From the given graph,the potential energy of the $A-B$ molecule is the most negative (minimum). This indicates that the $A-B$ bond is the most stable and has the highest bond dissociation enthalpy (bond strength) among the given molecules. $A$ steeper potential energy well corresponds to a higher force constant,meaning the bond is stiffer. Since the $A-B$ curve is the deepest and narrowest,it represents the strongest and stiffest bond. Therefore,the correct option is $C$.

The intermolecular potential energy for the molecules $A-A$,$A-B$,$A-C$ and $A-D$ given below suggests that:

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