What are Van der Waal forces ?
Van der Vaal forces are temporarily induced dipole forces. At any given time, the density of electrons in 1 atom will repel the electrons in another closely located atom, creating a dipole. Van der waal forces are the weakest type of interaction between molecules and exist in every compound, as every atom has electrons. Despite being weak interactions, in large molecules with lots of electrons, they can be significant. For example, van der waal forces are significant in hydrocarbons such as alkanes as there are no other interactions such as hydrogen bonds and dipole forces due to polarity.
ST
Related Chemistry A Level answers
All answers ▸How to write a redox equation from half equations
A) The compound butan-2-ol reacts with acidified potassium dichromate(VI) to form a new compound. Give the IUPAC name of the Product. B) 2,2-dimethyl butan-2-ol was subjected to the same conditions. State and explain the outcome
Draw the shape of an SF6 and SF4 molecule, indicating bond angles and any lone pairs which may influence these. What shape is the SF6 molecule?
The ratio between the molar mass of an alkene(A) and an alkyne(B) with the same number of carbon atoms is 1.05. Find the molecular formulas of the two hydrocarbons then write the reaction for how we can obtain the alkene A from the alkyne B.