Viscosity

The video explains how the molecular structure of substances affects their viscosity. Long molecules with strong intermolecular bonds result in high viscosity, while short molecules with weak bonds lead to low viscosity. Additionally, viscosity increases as temperature decreases, exemplified by lava, which flows quickly when hot and thickens as it cools.

What factors contribute to a substance having a high viscosity?

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How does the length of molecules affect their ability to move past each other?

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Why do substances with weak intermolecular bonds tend to have low viscosity?

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Explain the relationship between temperature and viscosity.

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What happens to the viscosity of lava as it cools?

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