Viscosity

[Aashka Popat 1A]

What does it mean for a liquid to have a high viscosity?

[Aman Sankineni 2L]

The viscosity of a fluid is a measure of its resistance to deformation at a given rate. Liquids with high viscosity have more of a resistance to deformation.

[KarineKim2L]

This means that the intermolecular bonds are stronger, and thus the liquid is "thicker". It will not flow as well.

[Anna Chen 1K]

When a liquid has high viscosity, it means there is a lot of friction between the adjacent layers of a liquid. This will make the liquid flow slowly.

[005206171]

I like to think of viscosity as how easily a liquid flows. Something that has high vicosity, like molasses, has strong intermolecular forces. Something with high viscosity is also described as being really thick, like molasses. Water has lower viscosity and flows much easier than molasses because it has weaker intermolecular forces.

[Max Madrzyk Dis 4G]

The higher the viscosity the smoother the liquid flows so like honey would have lower viscosity than water.

[ATingin_3I]

This means that the intermolecular bonds are stronger, and thus the liquid is "thicker". It will not flow as well.

what are the differences between intermolecular and intramolecular forces

[aishwarya_atmakuri]

A liquid has high viscosity when it has strong intermolecular forces so it tends to by sticky and slow-moving.

[Keerthana Sivathasan 2E]

Viscosity is the measure of resistance of a fluid to flow. A fluid that is highly viscous has a high resistance (like having more friction) and flows slower than a low-viscosity fluid. The easier a fluid moves, the lower the viscosity. Viscosity is expressed in units of the poise (mPa•s). Because a liquid can flow only if the molecules can move past one another with minimal resistance, strong intermolecular forces make it harder for molecules to move with respect to one another. Also, liquids consisting of long, flexible molecules tend to have higher viscosities than those composed of more spherical or shorter-chain molecules because it is easier for the longer molecules to become “tangled” with one another, making it more difficult for them to move past one another.

[Esha Chawla 2E]

This means that the intermolecular bonds are stronger, and thus the liquid is "thicker". It will not flow as well.

what are the differences between intermolecular and intramolecular forces

Intermolecular forces are forces between two separate molecules. This includes, but is not limited to, forces such as London dispersion forces, dipole-dipole forces, and Hydrogen bonding.

On the other hand, intramolecular forces are forces within a given molecule. This includes, but is not limited to, ionic bonds, covalent bonds, etc.

Thus, the different lies in the prefix of the given word. "Inter" means between - thus it refers to interactions between compounds/molecules. On the other hand, "intra" means within - thus it refers to interactions within a compound/molecule.

[brennayoung]

Is there any practical application to viscosity like do yall know if there are any formulas that factor in viscosity or is it more just a property of certain substances to be aware of in general knowledge?

[Elizabeth Johnson 1I]

Is there any practical application to viscosity like do yall know if there are any formulas that factor in viscosity or is it more just a property of certain substances to be aware of in general knowledge?

Yeah is this anything to bother with for the 2nd test?

[Naren_Ramesh_4F]

Is there any practical application to viscosity like do yall know if there are any formulas that factor in viscosity or is it more just a property of certain substances to be aware of in general knowledge?

Yeah is this anything to bother with for the 2nd test?

I think it might be on the test because it was covered in his lecture.

[805097738]

The higher the viscosity the smoother the liquid flows so like honey would have lower viscosity than water.

I don't think this is correct.

[Adelpha Chan 1B]

What does it mean for a liquid to have a high viscosity?

when a liquid has high viscosity, the molecules in the liquid exhibit strong intermolecular forces, resulting in a thicker liquid closer to the consistency of a solid.

[Rebekah Alfred 1J]

In lecture, we went over the example of 3 hydrocarbons at room temperature:
Pentane (C5H12) was a mobile fluid at room temperature.
Pentadecane (C15H32) was a viscous fluid at room temperature.
Octadecane (C18H35) was a waxy solid at room temperature.

In this example, it is clear how the number of electrons that a molecule has affects the viscosity.

[simona_krasnegor_1C]

For me, when I think of high viscosity I think of things like honey and syrup. The viscosity is like the thickness, and depends on internal frictional force.

[AliAsh 1H]

I always think of viscosity in terms of water and honey. honey is very thick and isn't easily deformed, which means its particles are more tightly held together, Water is the opposite, which means its intramolecular forces arent as strong.

[Susanna Givan 2B]

How does visocity change as surface tension change?

[Eve Gross-Sable 1B]

A high viscosity substance has high resistance to deformation due to strong intermolecular forces. This means it resists flow, so water is low viscosity.

[DPatel_2L]

The IMFs are stronger so it will flow slower.

[Evonne Hsu 1J]

I believe viscosity means how easily a liquid flows. A liquid will be thicker and not flow as quickly when intermolecular bonds are stronger. When a liquid has a high viscosity (flow more slowly), it means there is a lot of friction in the liquid.

[Jack_Pearce_2H]

Essentially it means the liquid has strong intermolecular bonds (i.e. LDF's, h-bonds, dipole dipole interactions)

[Tania Peymany 1A]

Viscosity has to do with internal friction, meaning the intermolecular forces of the molecule and the shape of the molecule will have a significant effect on how viscous it is. And usually, molecules that are polar and have stronger intermolecular forces will be more viscous in comparison to molecules that don't have these qualities.

[Milli Zunich 3I]

Basically, it's a liquid that doesn't pour well. Something with high viscosity would be honey or molasses while water has a low viscosity.

[LillianHarvey2C]

I actually did not know this either, but now it makes sense. When referring to viscosity the terms sound close to their meanings. (Low) viscosity means it's more of a (liquid) and (high) viscosity means it's (harder) to pour. L,L and H,H. Idk but thats what helps me remember it lol.