Review Note

Last Update: 10/04/2023 01:14 AM

Current Deck: All Exams P1::IE #3::PHAR117 Li L02

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Oil and Water Example

You shake oil and water together to mix, making oil droplets in water

Two phases come together ({{c1::liquid in liquid emulsion interface}})
Total energy of this system is {{c2::high}} due to {{c2::large surface area}}, but the {{c3::emulsion is unstable}} due to the {{c3::high free energy caused by the high surface area}}

If you leave the emulsion alone, it will {{c4::separate into two separate layers}} as this is {{c4::thermodynamically favorable}}.
With pharmaceuticals, we want to {{c5::maintain the unstable product (the emulsion)}}

To do so, we can use {{c5::surfactants}}

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