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Intermolecular forces increase as molecular size increases, thus the bigger the molecular size, the bigger the molecular mass, the stronger the intermolecular forces, the more energy required to break the bonds between the molecule, thus a higher melting/boling point.

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12y ago
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11y ago

as the molecular weight increases, the viscosity increases as well.

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9y ago

As a rule when the molecular weight increase the viscosity also increase.

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11y ago

the longer it is, the lumpier it becomes

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Q: How does molecule size affect melting point?
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