What is the relationship between viscosity and intermolecular forces?

What is the relationship between viscosity and intermolecular forces?

Intermolecular forces present in a liquid is a factor which affects its viscosity. Higher the intermolecular forces, higher will be the viscosity. When there is a strong intermolecular force, the molecules of the liquids are strongly bonded to each other. This induces a resistance to move.

Does higher viscosity mean higher IMF?

Viscosity is resistance to flow. For liquids, typically the larger the intermolecular forces (IMF) the higher the viscosity. The other factors that affect viscosity are temperature and the shape of the molecule. Higher temperatures will correspond to higher average kinetic energies and faster moving molecules.

Does viscosity increase with stronger intermolecular forces?

Viscosity is the resistance of liquids to flow. Viscosity increases with 1) stronger intermolecular forces and 2) decreasing temperature.

What can you conclude about the link between the strength of the IMF and the viscosity of a substance?

The viscosity of a liquid is its resistance to flow. Liquids that have strong intermolecular forces tend to have high viscosities.

Do weak intermolecular forces have high viscosity?

a) The weaker the intermolecular forces in a liquid, the higher the viscosity. b) The stronger the intermolecular forces in a liquid, the lower the viscosity.

What type of forces are responsible for viscosity in liquids?

Cohesive forces between like molecules are responsible for a liquid’s viscosity (resistance to flow) and surface tension (elasticity of a liquid surface).

What is viscosity How does viscosity depend on intermolecular forces What other factors affect viscosity?

What other factors affect viscosity? Viscosity is the resistance of a liquid to flow. Viscosity is greater in substances with stronger IMF because if molecules are more strongly attracted to one another, they do not flow around each other as freely.

What is the relationship between strength of intermolecular forces and capillarity?

Capillarity is related to surface tension. If the attractive force between the glass walls of the tube and the substance are stronger than the intermolecular forces in the substance, than the edges of the liquid will be pulled above the surface of the liquid. This in turn helps pull the liquid up the tube.

How do intermolecular forces affect surface tension and viscosity?

As the intermolecular attraction increases, • The vapor pressure ( the pressure of the vapor that is in equilibrium with its liquid) decreases • The boiling point ( the temperature at which the vapor pressure becomes equal to the pressure exerted on the surface of the liquid) increases • Surface tension ( the …

What is viscous viscosity force?

The property of a material that resists the displacement between its different layers is known as viscosity. Also, the force that opposes the relative motion between the layers is known as viscous force. As a result, the fluid’s relative velocity about the surface is zero.

What is the relationship between viscosity and intermolecular forces quizlet?

Viscosity is the resistance of a liquid to flow. Viscosity is greater in substances with stronger IMF because if molecules are more strongly attracted to one another, they do not flow around each other as freely.

What factors affect intermolecular forces?

Intermolecular forces are essentially due to electric field interactions. Accordingly, the two major factors are polarisation and polarisability. Polarisation is essentially the dipole moments in the molecule.

How can I identify intermolecular forces?

To determine the intermolecular forces of a molecule or chemical, you must first construct the electron dot structure (Lewis structure). Then you determine the polarity of the molecule. Once you have those done determining the types of intermolecular bonds become much more simple.

What are the properties of intermolecular forces?

The Effects of Intermolecular Forces on Material Properties. Intermolecular forces and the bonds they produce can affect how a material behaves. In the case of water, the relatively strong hydrogen bonds hold the water together. Two of the resulting properties are high surface tension and a high heat of vaporization.

What is a weak intermolecular force?

Intermolecular forces are weak relative to intramolecular forces – the forces which hold a molecule together. For example, the covalent bond, involving sharing electron pairs between atoms, is much stronger than the forces present between neighboring molecules.