Gibbs Free Energy using Enthalpy, Temperature and Entropy Calculator

✖Enthalpy is the thermodynamic quantity equivalent to the total heat content of a system.ⓘ Enthalpy [H]			+10% -10%
✖Temperature is the degree or intensity of heat present in a substance or object.ⓘ Temperature [T]			+10% -10%
✖Entropy is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work.ⓘ Entropy [S]			+10% -10%

✖Gibbs Free Energy is a thermodynamic potential that can be used to calculate the maximum of reversible work that may be performed by a thermodynamic system at a constant temperature and pressure.ⓘ Gibbs Free Energy using Enthalpy, Temperature and Entropy [G]

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Gibbs Free Energy using Enthalpy, Temperature and Entropy

Formula

`"G" = "H"-"T"*"S"`

Example

`"-6.05KJ"="1.51KJ"-"450K"*"16.8 J/K"`

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Gibbs Free Energy using Enthalpy, Temperature and Entropy Solution

STEP 0: Pre-Calculation Summary

Formula Used

Gibbs Free Energy = Enthalpy-Temperature*Entropy
G = H-T*S
This formula uses 4 Variables

Variables Used

Gibbs Free Energy - (Measured in Joule) - Gibbs Free Energy is a thermodynamic potential that can be used to calculate the maximum of reversible work that may be performed by a thermodynamic system at a constant temperature and pressure.
Enthalpy - (Measured in Joule) - Enthalpy is the thermodynamic quantity equivalent to the total heat content of a system.
Temperature - (Measured in Kelvin) - Temperature is the degree or intensity of heat present in a substance or object.
Entropy - (Measured in Joule per Kelvin) - Entropy is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work.

STEP 1: Convert Input(s) to Base Unit

Enthalpy: 1.51 Kilojoule --> 1510 Joule (Check conversion here)
Temperature: 450 Kelvin --> 450 Kelvin No Conversion Required
Entropy: 16.8 Joule per Kelvin --> 16.8 Joule per Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

G = H-T*S --> 1510-450*16.8

Evaluating ... ...

G = -6050

STEP 3: Convert Result to Output's Unit

-6050 Joule -->-6.05 Kilojoule (Check conversion here)

FINAL ANSWER

-6.05 Kilojoule <-- Gibbs Free Energy

(Calculation completed in 00.004 seconds)

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Home » Engineering » Chemical Engineering » Thermodynamics » Solution Thermodynamics » Thermodynamic Property Relations » Gibbs Free Energy using Enthalpy, Temperature and Entropy

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Created by Shivam Sinha

National Institute Of Technology (NIT), Surathkal

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National Institute of Information Technology (NIIT), Neemrana

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< 12 Thermodynamic Property Relations Calculators

Temperature using Gibbs Free Energy, Enthalpy and Entropy

Go Temperature = modulus((Enthalpy-Gibbs Free Energy)/Entropy)

Temperature using Helmholtz Free Energy, Internal Energy and Entropy

Go Temperature = (Internal Energy-Helmholtz Free Energy)/Entropy

Entropy using Helmholtz Free Energy, Internal Energy and Temperature

Go Entropy = (Internal Energy-Helmholtz Free Energy)/Temperature

Helmholtz Free Energy using Internal Energy, Temperature and Entropy

Go Helmholtz Free Energy = Internal Energy-Temperature*Entropy

Internal Energy using Helmholtz Free Energy, Temperature and Entropy

Go Internal Energy = Helmholtz Free Energy+Temperature*Entropy

Entropy using Gibbs Free Energy, Enthalpy and Temperature

Go Entropy = (Enthalpy-Gibbs Free Energy)/Temperature

Gibbs Free Energy using Enthalpy, Temperature and Entropy

Go Gibbs Free Energy = Enthalpy-Temperature*Entropy

Enthalpy using Gibbs Free Energy, Temperature and Entropy

Go Enthalpy = Gibbs Free Energy+Temperature*Entropy

Pressure using Enthalpy, Internal Energy and Volume

Go Pressure = (Enthalpy-Internal Energy)/Volume

Volume using Enthalpy, Internal Energy and Pressure

Go Volume = (Enthalpy-Internal Energy)/Pressure

Enthalpy using Internal Energy, Pressure and Volume

Go Enthalpy = Internal Energy+Pressure*Volume

Internal Energy using Enthalpy, Pressure and Volume

Go Internal Energy = Enthalpy-Pressure*Volume

Gibbs Free Energy using Enthalpy, Temperature and Entropy Formula

Gibbs Free Energy = Enthalpy-Temperature*Entropy
G = H-T*S

What is Gibbs Free Energy?

The Gibbs free energy (or Gibbs energy) is a thermodynamic potential that can be used to calculate the maximum reversible work that may be performed by a thermodynamic system at a constant temperature and pressure. The Gibbs free energy measured in joules in SI) is the maximum amount of non-expansion work that can be extracted from a thermodynamically closed system (can exchange heat and work with its surroundings, but not matter). This maximum can be attained only in a completely reversible process. When a system transforms reversibly from an initial state to a final state, the decrease in Gibbs free energy equals the work done by the system to its surroundings, minus the work of the pressure forces.

What is Duhem’s Theorem?

For any closed system formed from known amounts of prescribed chemical species, the equilibrium state is completely determined when any two independent variables are fixed. The two independent variables subject to specification may in general be either intensive or extensive. However, the number of independent intensive variables is given by the phase rule. Thus when F = 1, at least one of the two variables must be extensive, and when F = 0, both must be extensive.

How to Calculate Gibbs Free Energy using Enthalpy, Temperature and Entropy?

Gibbs Free Energy using Enthalpy, Temperature and Entropy calculator uses Gibbs Free Energy = Enthalpy-Temperature*Entropy to calculate the Gibbs Free Energy, The Gibbs Free Energy using Enthalpy, Temperature and Entropy formula is defined as the difference of enthalpy and the product of temperature and entropy. Gibbs Free Energy is denoted by G symbol.

How to calculate Gibbs Free Energy using Enthalpy, Temperature and Entropy using this online calculator? To use this online calculator for Gibbs Free Energy using Enthalpy, Temperature and Entropy, enter Enthalpy (H), Temperature (T) & Entropy (S) and hit the calculate button. Here is how the Gibbs Free Energy using Enthalpy, Temperature and Entropy calculation can be explained with given input values -> -0.00605 = 1510-450*16.8.

FAQ

What is Gibbs Free Energy using Enthalpy, Temperature and Entropy?

The Gibbs Free Energy using Enthalpy, Temperature and Entropy formula is defined as the difference of enthalpy and the product of temperature and entropy and is represented as G = H-T*S or Gibbs Free Energy = Enthalpy-Temperature*Entropy. Enthalpy is the thermodynamic quantity equivalent to the total heat content of a system, Temperature is the degree or intensity of heat present in a substance or object & Entropy is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work.

How to calculate Gibbs Free Energy using Enthalpy, Temperature and Entropy?

The Gibbs Free Energy using Enthalpy, Temperature and Entropy formula is defined as the difference of enthalpy and the product of temperature and entropy is calculated using Gibbs Free Energy = Enthalpy-Temperature*Entropy. To calculate Gibbs Free Energy using Enthalpy, Temperature and Entropy, you need Enthalpy (H), Temperature (T) & Entropy (S). With our tool, you need to enter the respective value for Enthalpy, Temperature & Entropy and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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