Page 292 - Gas Adsorption Equilibria

278 Chapter 5

M(t) Nm torque or mechanical moment of frictional
forces exerted by the sorptive gas on the
pendulum

g absolute mass of gas adsorbed on

g Gibbs excess mass adsorbed

g mass of sorptive fluid

g mass included in the gaseous boundary
layer surrounding the rotational pendulum

g mass of non-adsorbing (glassy) material

g mass of sorbent material

g mass of sorptive gas included in a storage
vessel of volume prior to a gas
sorption experiment, Fig. 5.13

g mass of adsorptive gas in adsorption
equilibrium of oscillometric-manometric
experiments
g mass of an empty rotational pendulum

unit vector in radial direction

unit vector in z-direction

coefficient of internal damping of a
torsional wire

m internal radius of a ring slit on a disk

m external radius of a ring slit on a disk

Re 1 Reynolds-number of sorptive gas flow
around the pendulum

r m radius coordinate