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If you move your finger in castor oil you would feel some dragging force against your moving finger. This is due to the viscous nature of the fluid. Same way if a small steel ball falls through castor oil kept in a jar then there will be a dragging force opposing the falling ball. This force is got by the formula 6 pi a eta v. Here pi is 3.14 and a - the radius of the ball. eta - the coefficient of viscosity of the castor oil and v - the velocity of the ball. This is known as Stokes's law of coefficient of viscosity.
What else can I help you with?
Why different sized metal spheres used in determining the coefficient of viscosity of oil?
Different sized metal spheres are used to determine the coefficient of viscosity of oil because the size of the sphere affects the rate at which it falls through the oil. By using spheres of different sizes, we can better understand how viscosity affects the motion of objects through the fluid. This information helps in accurately determining the coefficient of viscosity of the oil.
What is the derivation of Stokes' Law and how does it relate to the motion of small particles in a fluid?
Stokes' Law, derived by Sir George Stokes in the 19th century, describes the drag force experienced by small particles moving through a fluid. It states that the drag force is directly proportional to the particle's velocity and size, as well as the viscosity of the fluid. This law is important in understanding the motion of small particles in a fluid, such as how they settle or move in response to external forces like gravity or fluid flow.
What is Einstein law of viscosity?
Einstein's law of viscosity is stated by the equation u = 1 + 2.5 (volume fraction of solid particles). This equation is only used to calculate the relative viscosity of a slurry of fine particles in low concentrations.
What is the derivation of Stokes' Law?
Stokes' Law is derived from the balance of forces acting on a small spherical particle moving through a viscous fluid at low Reynolds numbers. The law describes the drag force experienced by the particle as it moves through the fluid.
Why heat transfer coefficient decrease with increase in fluid viscosity?
An increase in fluid viscosity can impede the movement of fluid molecules, reducing their ability to transfer energy through the fluid. This decreased fluid mobility results in a lower heat transfer coefficient, as there are fewer fluid molecules available to transport thermal energy across the surface. Additionally, higher viscosity fluids may form boundary layers that resist heat transfer across the fluid-solid interface, further reducing the overall heat transfer coefficient.
How do you calculate viscosity from a stokes law graph?
Hmmm.. what is "stokes law graph" ? If Stokes Force = Fs, r=radius of a tube, v=velocity of a particle The formula of viscosity is Fs=6.pi.viscosity.r.v Then viscosity= Fs/(6.pi.r.v)
Can we measure the coefficient of viscosity of mercury by using stoke s law?
Yes, the coefficient of viscosity for Mercury can be calculated using Stoke's Law.
How the coefficient of viscosity of a liquid changes with temperature?
The coefficient of viscosity of liquids decreases with an increases in temperature.
Why different sized metal spheres used in determining the coefficient of viscosity of oil?
Different sized metal spheres are used to determine the coefficient of viscosity of oil because the size of the sphere affects the rate at which it falls through the oil. By using spheres of different sizes, we can better understand how viscosity affects the motion of objects through the fluid. This information helps in accurately determining the coefficient of viscosity of the oil.
What is value of coefficient of viscosity of glycerin?
The value of the coefficient of viscosity of glycerin is approximately 1.5 Pa.s (pascal second) at room temperature. Viscosity measures a fluid's resistance to flow and is influenced by factors such as temperature and pressure.
What is the value of coefficient of viscosity of caster oil?
0.2
How can one calculate the diffusion coefficient in a given system?
To calculate the diffusion coefficient in a system, one can use the equation D (2RT)/(6r), where D is the diffusion coefficient, R is the gas constant, T is the temperature, is the viscosity of the medium, and r is the radius of the diffusing particle. This equation is derived from the Stokes-Einstein equation and is commonly used in physics and chemistry to determine diffusion coefficients.
What is the coefficient of viscosity of glycerin?
0776 N S/m2
What is the derivation of Stokes' Law and how does it relate to the motion of small particles in a fluid?
Stokes' Law, derived by Sir George Stokes in the 19th century, describes the drag force experienced by small particles moving through a fluid. It states that the drag force is directly proportional to the particle's velocity and size, as well as the viscosity of the fluid. This law is important in understanding the motion of small particles in a fluid, such as how they settle or move in response to external forces like gravity or fluid flow.
Define suspending agents?
Suspending agents help lower sedimentation rate of particles in suspension. This works by increasing viscosity of liquid vehicle, and slowing down settling in accordance to Stokes Law.
What is the coefficient of viscosity?
A measure of the resistance to flow of a fluid under an applied force.
What is a centistroke?
The correct spelling is centistoke. The ratio of a absolute viscosity of a liquid in centipoise to the density. It is a cgs unit of kinematic viscosity in customary use that is one hundredth of a stokes.
