States of Matter, Inter and Intramolecular Forces 2 (2) (4)

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Oct 30, 2023

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Intermolecular Forces, Intramolecular Forces, and States of Matter,
Intermolecular Forces versus Intramolecular Forces
? There are two main categories of attractive forces Intramolecular forces: are any forces that hold together atoms forming a compound These are the stronger of the two forces e.g. covalent bonds Intermolecular forces are any forces between molecules Although much weaker than intramolecular forces, intermolecular forces determine many physical properties of molecules e.g. hydrogen bonding, dipole-dipole, and London dispersion forces What are the attractive forces involved?
Attractive Forces
? An extremely weak attractive forces between atoms or molecules caused by temporary induced dipoles London Dispersion Forces
? Temporary dipoles (charges across the bond) exist due to electrons shifting towards one part of the molecule (or atom) causing a slight charge difference. ? They occur in all molecules ? This the only intermolecular force that nonpolar molecules can engage in ? Two nonpolar molecules will engage in London dispersion interactions London Dispersion Forces
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