Physical II Flashcards
ability to scatter or to dispersed light
Faraday Tyndall Effect
- random collisions of particles resulting to
irregular zigzag path (random movement of
particles)
Brownian Motion
spontaneous movement of particles from
region if higher concentration to one lower concentration until the concentration of the
system is uniform
DIFFUSION
- difference between the potential of the actual surface and the electroneutral region of the surface
NERNST POTENTIAL
- difference between the potential of the actual surface OF THE TIGHTLY BOUND LAYER and the electroneutral region of the surface
ZETA POTENTIAL
Protective property is expressed as
GOLD NUMBER
the minimum weight in milligrams of the
protective colloid (dry weight of dispersed phase) required to
prevent a color change from red to violet in 10 mL of gold sol on
the addition of 1mL of a 10% solution of sodium chloride
GOLD NUMBER
involves the movement of charged particles
through a liquid under the influences of an
applied potential difference
ELECTROPHORESIS
essentially opposite in principle to
electrophoresis. In the latter, the application of
potential causes charged particles to move
relative to the liquid, which is stationary
ELECTRO-OSMOSIS
reverse of electrophoresis is the creation of
potential when particles undergo sedimentation
SEDIMENTATION POTENTIAL
differs from electro-osmosis in that forcing a
liquid to flow through a plug orbed of particles
creates the potential
STREAMING POTENTIAL
Substances that exhibit yield value
PLASTIC
Decrease viscosity, INC rate of shear
PSEUDOPLASTIC
INC viscosity, with INC rate of shear
DILATANT
Measure the time required for a ball to fall
FALLING SPHERE VISCOMETER
