Best Answer

Dispersion forces, other known as London forces are the result of intermolecular forces between adjacent molecules. These forces grow in proportion to the lengths of the non polar portions of the molecules due to the increased surface area of interaction. To visualize this property macroscopically, envision two magnets of equal strength but different sizes; the magnet that has a larger surface area of interaction will stick greater than a smaller magnet due to the greater surface size and proportion of attraction

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

11y ago

because it is independant of molecular weight

This answer is:
User Avatar

User Avatar

Wiki User

11y ago

The heavier the molecule (molar mass) the stronger the dispersion force of interaction.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the relationship between molar mass and London dispersion forces?
Write your answer...
Still have questions?
magnify glass
Continue Learning about General Science

Which intermolecular force is the weakest?

If you are asking about bonds of attraction between separate molecules, there are two kinds: dipole-dipole attraction and London dispersion force attraction. Dipole-dipole attraction is the stronger of the two, because the molecules in this case are polar, meaning that electrons are more often clustered at certain spots on the molecule and rarified at the opposite end, resulting in a greater charge on both ends (London dispersion forces are the weak forces of attraction between nonpolar molecules during random, fleeting moments of polarization). These forces are not to be confused with ionic attraction (which is attraction between ions, not molecules) and covalent bonds (which are the forces holding the individual atoms in a molecule together), both of which are stronger than any intermolecular force of attraction (with covalent bonding being the strongest of all bonds at the chemical as opposed to the nuclear level). Keep in mind, though, that the exact strength of attraction varies depending on the electronegativities of the different atoms in the molecule (but the weakest polar molecular bonds are, by definition, stronger than the strongest nonpolar molecular bonds).

What is instantaneous dipole forces for nonpolar molecules?

That is dispersion force.

In a solid what is the attraction between particles?

Solids are held together but different types of intermolecular forces. The nature of these forces depends on the compound. In nonpolar substances, only dispersion forces at work. In polar compounds, dipole-dipole forces also hold the molecules together. Since dipole-dipole forces are stronger than dispersion forces, polar compounds usually have a higher melting point than nonpolar ones.

Forces of attraction between molecules tend to be strong?

Atoms held together in molecules are done so by intramolecular forces, which include ionic, covalent, and metallic. These depend upon the electroegativty of the specific atoms being bonded and how many bonds they have. You might mean intERmolecular forces, which bind multiple molecules in solution. I listed them below in order of descending strength: Ion-ion, hydrogen bonds, dipole-dipole, London dispersion forces.

Why does octane have a higher boiling point then water?

Octane is a straight chain molecule with a large surface area and stacks easily with other octane molecules. This increases the strength of the London dispersion forces that keep the octane molecules attracted to each other. The London dispersion forces on octane are greater than for smaller straight chain molecules because octane is both heavier and has more electrons that make it more polarizable.

Related questions

What is the intermolecular forces present in C3H8?

The only intermolecular forces in this long hydrocarbon will be dispersion forces.

What are the intermolecular forces of CH3CH2CH2OH?

London dispersion forces

London dispersion forces occur between molecules that are?


What is the intermolecular force for CBr4?

Dipole-Dipole and covalent sigma bond forces.

Which are the interolecular forces that can act between non-polar molecules?

London dispersion forces

What kind of intermolecular forces are present in CS2?

Dipole forces and London forces are present between these molecules.

London dispersion forces exist in all molecular solids?

London dispersion forces increase when atomic radius increase or the number of interactions between molecules.increase.

Intermolecular force of AsH3?

They have london forces between them. It is the weakest type of inter molecular force.

What intermolecular forces exist between two SO2 molecules?

Dipole-Dipole as SO" is a bent molecule with a dipole momennt (1.62D) due to the electronegativity dfference between S and O. There will also be weaker London dispersion forces due to instantaneous dipoles.

Is CH3CH2CH3 London dispersion force?

yes, CH4 has London dispersion forces because it is a non-polar molecule and non-polar molecules have London dispersion forces present in them. there are no other forces present in CH4.

What force of attraction between objects that is due to their masses?

London dispersion forces

What Force of attraction between objects due to their masses is?

London dispersion forces