The primary driving force behind the formation of water-in-oil (W/O) emulsions is the reduction of interfacial tension between the water and oil phases. Interfacial tension is a force that exists at the interface (boundary) between two immiscible liquids, like water and oil, due to the difference in their intermolecular forces. Water molecules are strongly attracted to each other due to hydrogen bonding, while oil molecules interact through weaker van der Waals forces. This difference....
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