Questions and Answers
What does LDF stand for?
LDF are _______ and very weak.
temporary
Why are London Dispersion forces so weak?
Because the electrons in two adjacent atoms occupy positions that make the atoms temporary dipoles.
________ charge because electrons end up in the same area.
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LDF results from the constant motion of _________ (which creates an instantaneous and induced dipole).
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If like dissolves like and polar dissolves polar, then nonpolar dissolves what?
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Study Notes
London Dispersion Forces (LDF)
- London Dispersion Forces are weak intermolecular forces primarily affecting nonpolar molecules.
- They arise due to the temporary dipoles formed when electrons in adjacent atoms momentarily shift positions.
Characteristics of LDF
- These forces are temporary and very weak in strength compared to other types of intermolecular forces.
- The weak nature is attributed to the fleeting existence of dipoles, which quickly dissipate as electron positions change.
Mechanism of LDF
- LDF occurs because of the constant motion of electrons, leading to the creation of instantaneous and induced dipoles.
- When electrons concentrate in one area, it results in a partial charge, influencing neighboring atoms.
Solubility Implications
- In the context of solubility, “like dissolves like” suggests that nonpolar substances dissolve other nonpolar substances.
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Description
This quiz focuses on London Dispersion Forces (LDF), a type of weak intermolecular force. Test your understanding of key terms and concepts related to LDF and their role in the attraction between nonpolar molecules. Perfect for students looking to reinforce their chemistry knowledge.
