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activity
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activity
1.
Symbol
a
. A thermodynamic function used in place of concentration in equilibrium constants for reactions involving nonideal gases and solutions. For example, in a reaction A ↔ B + C the true equilibrium constant is given by
K
=
a
B
a
C
/
a
A
where
a
A
,
a
B
, and
a
C
are the activities of the components, which function as concentrations (or pressures) corrected for nonideal behaviour.
Activity coefficients
(symbol γ) are defined for gases by γ =
a
/
p
(where
p
is pressure) and for solutions by ...
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Destroy chlorofluorocarbon compounds with submerged quench incineration
; ...and is determined by the equilibrium constant. If the combustion temperature is known, the equilibrium constant, K^sub p^, can be predicted...partial pressure in atm. The equilibrium constant for fluorine is much larger...
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Elementary steps of the cross-bridge cycle in Bovine myocardium with and without regulatory proteins
; ...0.04 mM^sup -1^. The equilibrium constant of the cross-bridge detachment...was 2.6 _ 0.4, and the equilibrium constant of the force generation...increased to 2.8x. The equilibrium constant of cross-bridge detachment...
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; ...systems on their Fe^sub t^O and MnO activity coefficients, representing the slag's thermodynamic...potential for steel reoxidation. The activity coefficients of Fe^sub t^O and MnO showed not...simultaneous consideration of the activity coefficients of Fe^sub t^O and MnO and stable...
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Determination of equilibrium constants for weakly bound charge-transfer complexes
; ...accurately for the first time. Using this method, the equilibrium constant for the formation of 1,2,4,5-tetracyanobenzene/pentamethylbenzene...analysis and the seminal report of the determination of the equilibrium constant for the formation of an iodine/benzene CT complex (21...
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From the AIChE bookshelf
; ...regulated chemicals. Until now, these data, including activity coefficients, oxygen demand parameters, and flammability limits, have...physical properties; vapor-liquid equilibria (including activity coefficients and Henry's Law constants for aqueous systems); fire...
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