![]() Liquids (fluids) have a tendency to flow.Many of the formulations are complex emulsions with structures that vary over time and may be reflected in viscosity changes. Viscosity measurements are a significant instrument for a receptive determine of material changes. Viscosity measurements of cosmetics are often performed for shelf-life testing to find out constancy. petrol (as a cleaner) being used in mobile shops.using coolant while machining at lathe shops,.Lubricants for machine systems also work the way they do in part as a result of their viscosity,.Gum that we use are highly viscous, to hold mating part before powerfully before sticking action complete,.Brake fluid transmits force through the braking system, and it would not operate properly if it had a different viscosity, ![]() Real- life applications of liquid with low viscosity: Because the repeatability and reproducibility of the coating procedure are often closely linked to the coating’s viscosity, it is a key parameter to control. ![]() (vii) The viscosity of coatings is one of the key parameters that determine the achievement of the coating procedure. Lubricants that are too thin present too little protection for moving parts. Lubricants that are too viscous can jam and clog pipelines. (vi) Manufacturing equipment requires suitable lubrication to run effortlessly. Fats, which are reasonably 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. (v) Viscosity plays a considerable function in the preparation and serving of food. (iv) The viscosity of paints, varnishes, and comparable household products is closely regulated so that the paints and varnishes can be applied smoothly and evenly with a brush roller. Drug companies manufacture medicines, such as cough syrup, that have a high viscosity yet are still drinkable, in order to coat the throat. (iii) The viscosity of a few medications, such as the various liquids used to remove warts, has also been modified for easier application. Water flows fast so it has low viscosity, honey has a high viscosity. In lubrication, viscosity is the most significant characteristic of lubricating oils and, what is often forgotten, it is also very vital in greases. ![]() In heavy machinery, highly viscous oils (example: grease) are used. In light machinery thin oils (for example, lubricant oil used in clocks) with low viscosity is used. (ii) The knowledge of the coefficient of viscosity and its variation with temperature helps us to choose a suitable lubricant for specific machines. (i) The knowledge of the coefficient of viscosity of organic liquids is used to determine their molecular weights. The importance of viscosity can be understood from the following examples – It is principally just another force inside the liquid, easily familiar and hence has been in common practice without any larger significance. ![]() For example, the viscosity of paints, varnishes, and comparable domestic products is intimately regulated so that the paints and varnishes can be applied smoothly and evenly with a brush roller. The viscosity of liquids is a significant property that must be measured accurately in some industries. It is an essential property of fluids which describes a liquids confrontation to flow and is related to the inner friction within the fluid. ![]()
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