Page 186 - Thermodynamics of Biochemical Reactions

Thernwdyanamics of Biochemical Reactions. Robert A. Alberty
Copyright 0 2003 John Wiley & Sons, Inc.
ISBN 0-471-22851-6

Glossary

Notc: When primes are used on thermodynamic potentials, it is important to indicate in the context the intensive variables that have
to be specified. This also applies when primes are used on equilibrium constants, amounts, or numbers like the number of
components, degrees of freedom. and stoichiometric numbers. SI units are indicated in parenthcses. When a physical quantity does
not have units, no units are givcn. Dimensions of matrices are also indicated in parentheses.

activity of species i D' apparent number of variables needed to describe
Helmholtz cncrgy (J) the extensive state of a system when the
transformed Helmholtz energy (J) concentrations of one or morc species havc been
constant in the Debye-Huckcl cquation (0.510651 specified
L-12 moll * at 298.15 K) D" apparent number of variables needed to describe
surface area (m2) the extensive state of ;+ system when the
conservation matrix (C x N) concentrations of one or more species and the
apparent conscrviition matrix when the concentrations of one or more reactants hake been
concentrations of one or more species arc hcld specified
constant (C' x N') E electric field strength (V m I)
apparent conservation matrix when the E magnitude of the electric field strength
concentrations of one or more species and one or (V m-')
more reactants are held constant (C" x N") E elcctromotive force (electric potential differcncc) or
magnetic flux density (magnetic field strength) (T) reduction potential (V)
magnitude of the magnetic flux density (magnetic EO standard electromoiive force of a cell or standard
field strength) (T) reduction potential (V)
empirical constant in the extended Dcbye-Hckel E' apparent electromotive force or apparent reduction
equation (I .6 kg' " mol- ' ') potential at a specified pH (V)
E'"
concentration of spccics i (moI E ~ standard apparent electromotive forcc of a ccll or
standard concentration (I mol L- ') standard apparent reduction potential (V)
number of components in a reaction system f force (N)
apparent number of components in a reaction F Faraday constant (96,485 C mol- I)
system when the concentrations of one or more F number of variables nccdcd to dcscribc the
species are held constant intensive state of a system
apparent number of components when the F' apparent number of variables needed to describc
concentrations of one or more species and one or the intensive state of a system after the
more reactants are held constant concentrations of one or morc species have bccn
specified
standard molar hcat capacity of spccies ,j (.I K ~
mol- I) F " apparent number of variables needcd to describe
standard transformed molar heat capacity of the intensive state of a system when the
reactant i (J K-' mol-') concentrations of onc or more species and the
standard heat capacity of formation of species ,j (J concentrations of one or more reactants have been
K-' rnol-.') specified
standard heat capacity of reaction (J K mol- I) G Gibbs energy of a system at specified 7; P, and ionic
standard transformed hcat capacity of reaction (J strength (J)
K ' mol-') G' transformed Gibbs cncrgy of a system at specilied 7:
number of variablcs needed to describc the P, ionic strength, and concentrations of onc or
extensive state of a system more species (J)