Page 295 - Gas Adsorption Equilibria

5. Oscillometry 281

g mass of a gaseous boundary layer
surrounding the pendulum during its
motion in the sorptive gas atmosphere

m characteristic length of pendulum / sorptive
gas system

1 unit vector in the azimuthal direction of the
disk of the pendulum

dynamic viscosity of a sorptive gas

dynamic viscosity of a sorptive gas in a
certain reference state, cp. (5.50)

1 Poisson number of wire material

kinematic viscosity of a sorptive gas

density of sorptive gas

mean square deviation, dispersion or square
of uncertainty of quantity (x)

g reduced mass of a sorbent / sorbate system
determined by gravimetric measurements,
cp. (5.58)

1 mass adsorbed plus mass of sorptive
gas moved along with the
pendulum during its oscillations per mass
of sorbent cp. (5.25)

relative increase of sorbent mass due
to gas adsorption during its motion on
a freely floating rotator in a gaseous
atmosphere with boundary layer
cp. eq. (5.47)