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1. Gibbs free energy calculator
GFree energy (J)
UInternal energy (J)
pPressure (Pa)
VVolume (m3)
TTemperature (K)
SEntropy (J/K)
Variables...
  valueunitslink
G
U
p
V
T
S
2. Gibbs free energy (when charge is passed in a battery)
GFree energry (J)
SEntropy (J/K)
TAbsolute temperature (K)
pPressure of the system (Pa)
VVolume of the system (m3)
ϵElectromotive force (V)
QCharge (C)
Variables...
  valueunitslink
G
S
T
p
V
ϵ
Q
3. Hole change in Gibbs free energy
ΔGHHole change in Gibbs free energy (J/mol)
ΔG Standard change in Gibbs free energy (J/mol)
Rmolar gas constant
TAbsolute temperature (K)
QrReaction quotient (dimensionless)
Variables...
  valueunitslink
ΔGH
ΔG
T
Qr
4. Standard change of reaction in Gibbs free energy
ΔGStandard change of reaction free energy (J/mol)
Rmolar gas constant
TAbsolute temperature (K)
KEquilibrium constant at temperature T (dimensionless)
Variables...
  valueunitslink
ΔG
T
K

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