Water, mercury, and kerosene are easily flowable liquids so they can be eliminated. 15 measured the viscosity of Fe3O4water nanofluids at volume fractions from 0.1 to 1 using a Brookfield viscometer across a temperature range from 25 to 45. If not remembered, it can also be solved by eliminating the options as we see these liquids in our daily lives.
A water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Its molecule is composed of 6 atoms joined in a ring, with 1 hydrogen atom attached to each carbon atom. Wiki Water Viscosity of Water Description Water is a chemical compound with the chemical formula H2O. These data include the following: Density. Benzene is an organic chemical compound with the molecular formula C 6 H 6. Note: One should remember the values of the viscosity for such questions. Accurate thermophysical properties are available for several fluids. g., in diffusion-weighted magnetic resonance imaging (MRI). The unit of viscosity is Pa S (Pascal Second). Typical reported deviations of the CO2/H2O system using empirical models are below 3 for the viscosity and the thermal conductivity and between 5-20 for the. Purpose To provide exact values of self-diffusion coefficients of water (H216O) over a broad range of temperatures as reference values for testing and calibrating diffusion measurements, e. Mercury - $0.0015$ Where, g=acceleration due to gravity, a = Radius of the sphere, and v= Velocity with which the sphere moves through a liquid. But there are other factors too, like- shape of individual molecules or the temperature.Īll of the given substances are liquid at room temperature, so, on looking at their absolute viscosity values at room temperature (300K), we see:
The main factor that affects the viscosity of a liquid is the intermolecular force of attraction. Viscosity is also sometimes termed as “fluid friction”. Mercury, Water, Kerosene, and Glycerine are all liquid at room temperature. Both gases and liquids exhibit this property but in liquids, viscosity is much more pronounced, and can highly affect its mechanical as well as physical properties. The thermal conductivity of the brick may be taken as 0.7 W/m K. Weast, 1983,CRC Handbook of Chemistry and Physics, 64th edition, CRC Press, Boca Raton, FL) can be used to compute the density w(kg/m3) and dynamic viscosity w(kg/ms) at other temperatures: w 999.83952+16.945176(T)7.9870401×103(T)2 46.170461 ×106(T)3+105.56302×109(T)4280. Hint: Viscosity is the measure of resistance that is offered by a given fluid when it is subjected to deformation or is allowed to flow. The Prandtl number is a dimensionless quantity that puts the viscosity of a.
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