activity (relative activity),
Defined by the equation
where
is the
gas constant
,
the
thermodynamic temperature
,
the
chemical potential
and
the
standard chemical potential
the definition of which depends on the choice of the
standard state
.
See also:
absolute activity
Source:
Green Book, 2nd ed., p. 49
PAC, 1996,
68
, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996))
on page 989
is the gas constant,
the thermodynamic temperature,
the chemical potential and
the standard chemical potential the definition of which depends on the choice of the standard state.