van der Waal - strongly repelled Fig A • The most...

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van der Waal's Force As two atoms come into close proximity they show a weak bonding interaction due to their fluctuating electrical charges. This force is known as van der Waals attraction ( Fig. A. ). van der Waals attraction (per atom) is 0.1 kcal/mole both in a vacuum and in water. If two atoms come too close to each other they will be
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Unformatted text preview: strongly repelled ( Fig. A. ). • The most effective distance between atoms can be calculated by adding the van der Waals radius of the two interacting atoms ( Fig. B. ). Even though van der Waal's attractions are weak, large complimentary surfaces can be held together readily if many atoms are involved at the same time....
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