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