What is viscosity?, Biology

Assignment Help:

Q. What is viscosity?

Viscosity is resistance to flow of a liquid. It is a measure of the resistance of a fluid to deformation under shear stress. It is commonly perceived as "thickness", or resistance to pouring. Viscosity describes a fluid's internal resistance to flow and may be thought of as a measure of fluid friction. Thus, water is "thin", having a Low viscosity, while vegetable oil is "thick" having a high viscosity. While studying about viscosity you will come across terms such as newtonian fluid and non-newtonian fluids. What do we mean by this? A Newtonian fluid is one in which the viscosity does not depend on the shear rate-no matter what shear is applied, the viscosity stays the same. Examples of newtonian liquids are mineral oil, water and molasses. In many applications, however, this is not the case and, as the fluid is sheared at greater rates, the viscosity will change. These types of liquids are known as non-newtonian and there are many classifications. Examples are toothpaste and whipped cream. Various methods for textural or rheological measurement are used.


Related Discussions:- What is viscosity?

What are nadph and nadp, Q. What are NADPH and NADP? NADP is the short ...

Q. What are NADPH and NADP? NADP is the short form of the nicotinamide adenine dinucleotide phosphate cation, a hydrogen acceptor. NADPH is made when NADP binds to one hydrogen

Kin and group selection, Before we proceed to discuss kin selection we shou...

Before we proceed to discuss kin selection we should define the term altruism. It refers to the behaviour pattern of an individual in the population for the benefit of other member

What are the phases to atherosclerosis, Q. What are the phases to atheroscl...

Q. What are the phases to atherosclerosis? There are five phases to atherosclerosis: Phase I: Asymptomaticphase, consists of fatly streaks which are non-obstructive, lipi

Apical ectodermal ridge or aer, Apical Ectodermal Ridge (AER) We have ...

Apical Ectodermal Ridge (AER) We have described earlier that the AER persists at the tip until the last phalangeal cartilage begins differentiation. The following experiments

Explain functions of ascorbic acid, Explain Functions of Ascorbic Acid? ...

Explain Functions of Ascorbic Acid? Vitamin C is easily oxidized, and the majority of its functions in vivo rely on this property. It plays a key role in the body's synthesis o

Precautions for estimation of sucrose by fehling soxhlet, Explain Precautio...

Explain Precautions for Estimation of Sucrose by Fehling Soxhlet Method? 1. Maintain proper temperature of the water bath for complete hydrolysis. 2. Add distilled water to

How are poriferans characterized, Q. Concerning digestion how are poriferan...

Q. Concerning digestion how are poriferans characterized? Sponges are diverse from other animals since they present only intracellular digestion. Do they release digestive enzy

Acute renal failure and its etiology, Acute Renal Failure You know tha...

Acute Renal Failure You know that acute renal failure refers to the sudden deterioration in kidney function, characterised by reduced urine excretion to less than 10 ml/kg  bo

Cytoplasm plays the most important pathogenetic role, The formation of surf...

The formation of surface blebs caused by ischemia reflects in part plasma membrane injury, but also a sign of cytoplasmic injury. Which filamentous component of the cytoplasm plays

Nursing management of myocarditis, Nursing Management Propped up po...

Nursing Management Propped up position.  Monitor signs and symptoms and laboratory test results documenting myocarditis.  Monitor adequacy of cardiac output and hemo

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd