Consider a fluid placed between two parallel plates, and the top plate is pushed parallel to the bottom plate with constant. Pas is equivalent to N × s m 2 or kg/m/s. A pascal-second (Pas) is a derived metric SI (System International) measurement unit of dynamic viscosity. Answer D may be possible in some applications. The pascal-second is a unit of measurement of dynamic viscosity. Higher water content will similarly reduce the viscosity of honey. ![]() Conversely heating the honey to (say) 50☌ will greatly reduce its viscosity and improve its ability to flow. More commonly used is the dyne sec/cm 2 which is called Poise. However, the ability of the honey to flow after it is cooled in a refrigerator is greatly diminished. Viscosity has the SI units Pascal seconds (Pa s) which is called the Poiseuille. Honey in a jar will flow at room temperature, albeit slowly. The CGS unit is the poise (P, or gcm 1 s 1 0.1 Pas), named after Jean Lonard Marie Poiseuille. The viscosity of honey at 20oC is 10 (Pa s). Not so fast! Viscosity can be described as the ability of a fluid to flow over itself, and it can be highly dependent on temperature. Do honeys from different nectars affect viscosity In 'The beekeepers handbook' it mentions thixotropy as one of the properties of honey and how the thixotropic properties of honey change according to nectar sources. s/m 2), also frequently expressed in the equivalent forms pascal-second (Pas), kilogram per meter per second (kgm 1 s 1) and poiseuille (Pl). Physics Photo Contest- Pass the Honey, Honey by Carmen Lynch, 2012.Conversion factors are as follows: 1 centipoise (cP) 0.01 poise (P) 1 Pas 10 P. A common measurement unit is the milliPascal second (mPas). The conversion factor being: 1 Poise equal to 1x10-1 Pas. The first viscosity appears to be a generic estimate whereas the second refers to a specific commercially available product.Īnswer E appears to be correct. Answer (1 of 3): If you poured some water down a slope, it would flow freely and quickly, but what about if you repeated the process with honey Can you imagine how honey would flow down a slope Sticky oozy honey would probably move quite a bit slower than the water. In the new SI system, it is proposed that values for the Poise be stated as Pascal seconds. ![]() Now, drop the same size of stone into a container of honey with the same volume of water. More research reveals that blended flower honey has a viscosity of approximately 12,200 cP at the same temperature. Watch on Viscosity Definition When you drop a little stone into a container of water, it gets to the bottom of the container very easily and faster. What is the approximate viscosity of honey in centipoise (cP)?Ī quick internet search shows that the viscosity of honey is 10,000 cP at a room temperature of 21.1☌.
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