Page 294 - Gas Adsorption Equilibria

280 Chapter 5

volume of a sorbent material determined by
(low pressure, high temperature) helium
measurements

volume of sorbent pellets of mass in a
reference state

bulk volume of sorbent pellets of mass
in (same) reference state

volume of gas storage vessel and
adsorption in oscillometric-
manometric measurements, Fig. 5.13.

1 initial amplitude of pendulum

1 azimuthal amplitudes of the oscillation of a
rotational pendulum

1 amplitude or angular displacement of a
pendulum

1 ratio of sorbent masses at balance
and at the pendulum

1 logarithmic decrement of damped
oscillations of the pendulum loaded with
sorbent in vacuum

1 logarithmic decrement of experimentally
observed damped harmonic oscillations of
the pendulum in the gas
1 logarithmic decrement of damped
oscillations of the empty pendulum in
vacuum

moment of inertia of the mass included in a
boundary layer around the pendulum and
moved along with the pendulum