Introduction Flashcards
Application of physical & chemical principles & laws in pharmaceutical sciences
Physical Pharmacy
Father of Physical Pharmacy
Takeru Higuchi
Independent on the size of the amount of material in the system
Intensive/Intrinsic Property
Depends on the size of the amount of material in the system
Extensive/Extrinsice
Extensive / Extrinsic Properties
Mass
Volume
Weight
Pressure
Heat content
Intensive / Intrinsic Properties
*Density
*Boiling point, Melting point, Freezing point
*pH
*Color
*Sublimation temperature
*Concentration
*Optical activity
Physical Properties of Systems:
Additive
Constitutive
Colligative
Depends on the sum of the individual properties of the components present in a system
Additive Property
Depends on the type & arrangement of the components present in a system
Constitutive Property
Depends on the number of components present in a system
Colligative Property
Additive Property
Molecular Weight
Constitutive Property
Refraction of Light
Optical Activity
Surface
Interfacial Characteristics
Colligative Property
Osmotic Pressure
Freezing Point Depression
Vapor Pressure Lowering
Boiling Point Elevation
Properties of gas
Weak intermolecular forces of attraction
Rapid motion kinetic energy
Fill all available space
Invisible
Compressible
Kinetic Molecular Theory of Gas
- Consists of small particles that are in constant and random motion
- Gas particles are very small compared to average distance that separates
- Gas particles are constantly colliding with others and wall of container
- No forces of attraction or repulsion exist between any two gas molecules
- Average kinetic energy is proportional to temperature
