According to C.E. van der Waals,the interatom | vedclass

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(D) The interatomic potential energy $U(R)$ for neutral atoms or molecules at large distances is dominated by the van der Waals attraction,which arise

Vedclass · Accepted Answer

$R^{-6}$

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(D) The interatomic potential energy $U(R)$ for neutral atoms or molecules at large distances is dominated by the van der Waals attraction,which arises from induced dipole-induced dipole interactions (London dispersion forces).According to the theory of these interactions,the potential energy $U$ is inversely proportional to the sixth power of the interatomic distance $R$.Mathematically,this is expressed as $U(R) \propto R^{-6}$.Therefore,the correct option is $D$.

According to $C.E.$ van der Waals,the interatomic potential varies with the average interatomic distance $(R)$ as

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