Question

Why viscometer placed in water bath during flow rate measurements

Answer 1

As viscosity is due to intermolecular interaction, so this property is affected by heat, given that heat is the result of the kinetic energy of molecules in a fluid. However, heat has a very different effect on liquids and gases

Answer 2

Answer:

Viscometer is placed in water bath during flow rate measurements because it sensitive to the temperature.

Explanation:

• A tool called a viscometer is used to measure the viscosity of fluids. A device known as a rheometer is used for liquids whose viscosities change depending on the flow circumstances. Only one flow condition can be used by viscometers to measure viscosity.
• a device used to measure a fluid's viscosity (resistance to internal flow). One variation tracks the amount of time it takes a certain volume of fluid to pass through an aperture.
• The capillary tube viscometer measures the pressure required to induce a fluid to flow through a small tube at a specific rate.
• Other types rely on measurements of the time it takes for a sphere to pass through the fluid, the force required to rotate the inner cylinder of a coaxial pair (the fluid being tested fills the space between the two cylinders), or the speed at which oscillations of a disc vibrating in the fluid stop.

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