

Kinematic viscosity is defined by the ratio of dynamic viscosity and fluid density. The kinematic viscosity equation can explain the relation between viscosity and density. In gases, viscosity decreases with increasing density. In liquids, viscosity increases with increasing density.

This, in turn, makes the fluid less viscous. When the temperature increases, the density of the fluid decreases. In other words, the rising temperature will make the molecules move apart, and the friction between the layers decreases. This makes the molecules collide with each other, and hence the viscosity is decreased. On rising its temperature, the molecules within it start moving faster. First, let us freeze it, and now the molecules are attached. Both the viscosity and density are not directly related, but they are related in terms of temperature.

In other words, the crowding of molecules at the molecular level. Density tells how closely the molecules are packed together.Density is a fluid property to measure the distance between two particles in a fluid, i.e., it is the measure of mass per volume.Viscosity tells how difficult for the molecules to move relative to each other.Viscosity is a fluid property to measure the thickness of a fluid, i.e., it is a property that opposes the relative motion between the layers in a fluid which are moving at different velocities.Blood viscosity is a major issue: blood that is too viscous can form dangerous internal clots, while blood that is too thin will not clot this can lead to dangerous blood loss and even death.These two tables show that viscosity decreases with decreasing density in liquids, whereas viscosity increases with decreasing density in gases.

Viscosity can be of critical importance in medicine as fluids are introduced into the body intravenously. Lubricants that are too thin provide too little protection for moving parts. Lubricants that are too viscous can jam and clog pipelines. The property of a fluid that provides resistance to the transport of one layer of fluid over an adjacent layer is. Manufacturing equipment requires appropriate lubrication to run smoothly. Viscosity is a physical property that describes how well simple fluids flow. Some viscous fluids add texture to foods honey, for example, is quite viscous and can change the "mouth feel" of a dish. A thick potato and leek soup, for example, when it is less viscous, becomes French vichyssoise. Different cuisines also rely on the viscosity of sauces, soups, and stews. Fats, which are moderately viscous when heated, become solid when chilled. Cooking oils may or may not change viscosity as they heat, while many become much more viscous as they cool. Viscosity plays a significant role in the preparation and serving of food. Some oils have a more stable viscosity, while others react to heat or cold if your oil's viscosity index is low, it may become thinner as it heats, which can cause problems as you operate your car on a hot summer's day. In addition, viscosity also affects the rate of oil consumption and the ease with which your vehicle will start in hot or cold conditions. That's because viscosity affects friction, and friction, in turn, affects heat. When you put oil into your car or truck, you should be aware of its viscosity.
