Page 127 - Gas Adsorption Equilibria

2. Volumetry / Manometry 113

x [x] measurable physical quantity

[x] mean value of a measurable quantity x

1 molar concentration of component i in an
adsorbed phase

[x] experimental uncertainty of the numerical
value of a measurement of the
quantity (x)

1 molar concentration of component i = 1 ...N
in a sorptive gas mixture

1 molar concentration of component i = 1 ...N
in a sorptive gas mixture supplied to the
storage vessel prior to adsorption

Z 1 compressibility or real gas factor

1 compressibility or real gas factor of helium

density of a sorptive gas

density of a sorptive medium in a liquid
reference state

density of pure component i of a sorptive in
a reference liquid state

dispersion, variance or mean statistical
deviation (MSD) of a measurable quantity
(x)

reduced mass of adsorbed phase measured
volumetrically, cp. eqs. (2.4, 2.5)