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The size of molecular chlorine is about ...

The size of molecular chlorine is about `3.5A^@`. At what maximum intermolecular distance the dispersion forces operate?

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One-half of the size is taken as .r.
T. of chlorine is 1.75`A^@`
The interaction energy is proportional to `r^(-6)`
`r^6` for molecular chlorine `= 2.9A^@`
The maximum distance at which the intermolecular forces operate in chlorine is approximately 300pm.
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