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Questions and Answers
What is the term for the boundary between two phases?
What is the term for the boundary between two phases?
- Interface (correct)
- Transition zone
- Surface area
- Boundary
What are the properties of molecules at the interface often referred to as?
What are the properties of molecules at the interface often referred to as?
- Unconventional
- Atypical
- Anomalous (correct)
- Abnormal
In pharmacy, which of the following is an importance of interfacial phenomena?
In pharmacy, which of the following is an importance of interfacial phenomena?
- Penetration of molecules through biological membranes
- Adsorption of drugs onto adjuncts in dosage forms
- Dispersion of insoluble particles in liquid media
- Emulsion formation and stability (correct)
What are the two groups into which the various combinations of interfaces are divided for convenience?
What are the two groups into which the various combinations of interfaces are divided for convenience?
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What is the term for the tension at the interface between gas and liquid phases?
What is the term for the tension at the interface between gas and liquid phases?
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Study Notes
Interfacial Concepts
- The boundary between two phases is known as an interface.
- Molecules at the interface exhibit unique characteristics referred to as interfacial properties.
Importance in Pharmacy
- Interfacial phenomena play a crucial role in pharmacy, impacting drug formulation, stability, and bioavailability of pharmaceuticals.
Interface Classifications
- Interfaces can be divided into two main groups for convenience: homogeneous interfaces and heterogeneous interfaces.
Tension at the Interface
- The tension existing at the boundary between gas and liquid phases is termed interfacial tension.
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