Why do the liquids from different layers?

Density = mass/volume. The liquids that are more dense are also heavier (per constant volume) and are at the bottom and the liquids that are the least dense will stay on top. Because of the different densities the liquids separate into layers.

Why do liquids flow at different speeds?

Flow rate can be expressed in either terms of cross sectional area and velocity, or volume and time. Because liquids are incompressible, the rate of flow into an area must equal the rate of flow out of an area. For example, if the area of a pipe is halved, the velocity of the fluid will double.

What causes fluid flow?

Fluid flow during solidification can be caused by the density difference between liquid and solid (shrinkage flow), or by the action of gravity on density gradients within the fluid phase itself.

Why does few liquid form a separate layer?

Density of a liquid determines how it will layer (heaviest to lightest). If the liquid us least dense it float to the bottom. Layers will remain separated because each liquid is actually floating on top of the more dense liquid beneath it.

Why do more dense liquids sink?

If the object is denser than water it is more massive than the water that it displaces. This means that the object experiences greater gravitational force than the water and so sinks.

How do liquids settle?

Settling is the process by which particulates settle to the bottom of a liquid and form a sediment. Particles that experience a force, either due to gravity or due to centrifugal motion will tend to move in a uniform manner in the direction exerted by that force.

Why do liquids flow when left in the open?

Hint: Liquid don’t have a definite shape, and they can flow because the particles are still packed close together whereas the liquid can’t easily be compressed and keep the same volume. Moreover in case of gas; the gas molecules are free to move in all directions.

Why does water flow faster than oil?

Water has a low viscosity . Thus water flows more easily than oil. Oil has high inter molecular force of attraction than water. Thus water slide faster than oil.

What factors affect fluid flow?

Factors that affect fluid flow

• The viscosity, density, and velocity of the fluid.
• Changes in the fluid temperature will change the viscosity & density of the fluid.
• The length, inner diameter, and in the case of turbulent flow, the internal roughness of the pipe.

Do fluids flow from high to low pressure?

Yes, fluid always flows from high pressure to low pressure.

What is it called when liquids separate into layers?

Decantation can be used to separate immiscible liquids that have different densities. For example, when a mixture of water and oil is present in a beaker, after some time a distinct layer between the two liquids is formed, with the oil layer floating on top of the water layer.

Why some liquids when mixed they form on top of the other liquid?

This is due to the miscibility of the different liquids. If liquids have a very different chemical structure that makes one polar and the other one unpolar, they will not mix and always stay separate.