HW #7: Due Nov 13 Unit of Viscosity S.I. unit: N.s.m$^{-2}$ or Pa.s Other common units: Poise (dyne.s.cm$^{-2}$) or cP (centipoise) Prove this equation: 1 Pa.s = 10 Poise = $10^3$ cP
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- SI unit: NĀ·sĀ·mā»Ā² or PaĀ·s (Pascal-second) - Other units: Poise (dyneĀ·sĀ·cmā»Ā²) and cP (centipoise) Show moreā¦
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The C.G.S. unit of coefficient of viscosity is poise and the SI unit is $\mathrm{Pa}-\mathrm{S}$. What is the relation between the two ? (A) $1 \mathrm{~Pa}-\mathrm{s}=10^{3}$ poise (B) $1 \mathrm{~Pa}-\mathrm{s}=10^{4}$ poise (C) $1 \mathrm{~Pa}-\mathrm{s}=10$ poise (D) $1 \mathrm{~Pa}-\mathrm{s}=100$ poise
Another common unit for viscosity is the centipoise, which is 10^-2 poise (just like a centimeter is 10^-2 meters). (1 centipoise = 0.001 Nā s/m^2) The unit poise is named after Jean Leonard Marie Poiseuille. The conversion between the centipoise and the Paā s is 1 centipoise = 1 mPaā s. What is the viscosity of water at room temperature?
Madhur L.
The CGS unit for measuring the viscosity of a liquid is the poise [P]: 1 P = 1 g/(sĀ·cm). The SI unit is the kg/(sĀ·m). The viscosity of water at 0Ā°C is 2.01 ā 10^-3 kg/(sĀ·m). Express this viscosity in poise.
Sam S.
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