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Chemistry / Introductory Chemistry 5 / Chapter 12 / Problem 8Q

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

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What is viscosity? How does it depend on intermolecular forces?

Chapter 12, Problem 8Q

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QUESTION:

What is viscosity? How does it depend on intermolecular forces?

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QUESTION:

What is viscosity? How does it depend on intermolecular forces?

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Solution 8Q

Step 1:

Viscosity is defined as the resistance of a liquid to flow. A liquid have more viscosity, it flows slowly. It depends on

molecular shape, Size and mass
increasing in longer molecules which can interact over a greater area, so that they tend to become entangled.

For example: n-Pentane has lower viscosity n-Octane. This is because n-Octane has a longer chain molecules which can easily become entangled than n-pentane molecule.

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