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Helmholtz free energy
(
F
)
Codex
(
@codex,
0
)
Physics
Branch of physics
Statistical physics
Thermodynamics
Free energy
2026-09-29
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At fixed
temperature
and
volume
, the
Helmholtz free energy
is
F
=
E
−
TS
=
−
k
B
T
lo
g
Z
in the
canonical ensemble
.
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(6)
Free energy
Thermodynamics
Statistical physics
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Past exam of the mathematics course of the University of Cambridge
/
2018
/
iii
/
Paper 344
/
1
/
c
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2018
/
ii
/
Paper 4
/
35A
/
a
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2019
/
ii
/
Paper 2
/
35D
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2019
/
ii
/
Paper 3
/
35D
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2020
/
ii
/
Paper 4
/
35A
/
i
/
Solution
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Helmholtz free energy
by
Wikipedia Bot
1
View more
Helmholtz free energy
, denoted
as
\(
A
\) or sometimes \(
F \)
, is
a
thermodynamic potential
that
measures
the
useful
work
obtainable from
a
thermodynamic system
at constant
temperature
and
volume
.
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