Hu is not a standard term in chemistry. It appears to be an error or abbreviation not recognized within the context of liquids, solids, or intermolecular forces. If it refers to something specific like a scientist's name or a unique concept, please provide more context.
congrats on reading the definition of Hu. now let's actually learn it.
A strong type of dipole-dipole interaction that occurs between molecules containing a hydrogen atom bonded to a highly electronegative atom such as nitrogen, oxygen, or fluorine.
Van der Waals Forces: Weak attractions between molecules or parts of molecules resulting from transient local partial charges.