-application of physical and chemical principles and laws in pharmaceutical scoences -physical chemistry in pharmacy -to understand and develop dosage forms and drug delivery system

indivisible unit of matter

combination of atoms

combination of DIFFERENT atoms

cation or anion

forces within a molecule

ionic bonding

covalent bonding

intermolecular forces

transfer of electron

electronegativity difference of ionic

unequal sharing of electrons

electronegativity difference of polar covalent bond

equal sharing of electron

electronegativity difference of non polar covalent bond

alloy formation between 2 or more metals goal: resistanc to corrosion

polar molecules attracted to either positive or negative charges

the force of attraction induced by a close proximity of a charged ion into a non-polar molecule

attraction of H for a strongly elctronegative ion

depends on the sum of the individual properties of the components present in a system

depends on the type and arrangement of the components present in the system

depends on the number of components present in a system

depends on the size or amount of material in the sytem eg: V, entropy, enthalpy, electric resistence, mass

does not depend on the size or the amount of material in the system eg: Sp gravity, viscosity, velocity

numerical value of density

meausure of the disorder or randomness of a system

sum of internal energy E of a system and the poduct of the pressure and volume of the system

AKA mesophase, liquid crystal -partly solid and partly liquid -tends to flow like liquid under extreme conditions

the property of plasma to divide the passing light into two components with differeent velocities and refractive index

soap like/grease like, rotates in one axis, mobile on 2 directions -most important pharmaceutical setting

thread like, rotates in one axis, mobile in 3 directions

considered as special type of nematic, with highest opacity (chiral nematic)

first plasma produced by thermotropic method

only visible gas