No, London forces are not occurred by the dipoles, they are formed with the temporary asymmetrical distribution of the electron clouds of molecules.
For example, bromine molecules have only London forces between them.
The only intermolecular forces in this long hydrocarbon will be dispersion forces.
London dispersion forces
Dipole-Dipole and covalent sigma bond forces.
Yes, CH3CH2CH3 (propane) can experience London dispersion forces. London dispersion forces are weak intermolecular attractive forces that all molecules exhibit due to temporary shifts in electron distribution, resulting in temporary dipoles.
London forces
London dispersion vander walls force
London dispersion forces (instantaneous induced dipole-dipole interactions.)
I think it is the German-American physicist Fritz London :)
Yes, CH4 (methane) does exhibit London dispersion forces due to temporary fluctuations in electron distribution around the molecule. These dispersion forces are the weakest intermolecular forces and are responsible for the non-polar nature of methane.
Hydrogen bonding and London Dispersion forces (the latter of which are in all molecules).
Yes, London dispersion forces are generally considered weak compared to other intermolecular forces such as dipole-dipole interactions or hydrogen bonding. They are caused by temporary fluctuations of electron densities in molecules, resulting in weak attraction between molecules.
In C6H14 (hexane) and H2O (water), there are London dispersion forces, dipole-dipole interactions, and hydrogen bonding. In HCHO (formaldehyde), there are dipole-dipole interactions and London dispersion forces. In C6H5OH (phenol), there are hydrogen bonding, dipole-dipole interactions, and London dispersion forces.