How viscosity of liquid depends on temperature?

Answer 1

Viscosity is a liquids resistance to flow.

Viscosity decreases as the liquid is heated.

Molecular shape of the components making up the liquid can affect viscosity. Small round molecules make little contact and can move more freely making a compound less viscous.

The viscosity of a fluid is basically a measure of how sticky it is. Water has a fairly low viscosity; things like shampoo or syrup have higher viscosity. Viscosity also depends on temperature - engine oil, for instance, is much less viscous at high temperatures than it is in a cold engine in the middle of winter.

Answer 2

Generally, the viscosity of a liquid decreases as temperature increases. This is because as temperature rises, the kinetic energy of the liquid molecules also increases, causing them to move more freely and flow more easily past one another. Conversely, at lower temperatures, the molecules have less energy and tend to move more slowly, resulting in a higher viscosity.