Insert the information in the form and the calculator will determine the gibbs free energy.


What is the gibbs free energy?


The gibbs free energy is a thermodynamic potential that calculates the maximus amount of work that may by performed by a thermodynamically closed system at constant pressure and temperature.


How to calculate gibbs free energy?


To calculate gibbs free energy you should use the following formula:
ΔG = ΔH - T * ΔS
where:
ΔG = change in gibbs free energy
ΔH = change in enthalpy
T = temperature in kelvin
ΔS = change in entropy


Why use gibbs free energy?


The gibbs free energy is used in determining outcomes of an electrochemical cell such as the determining the voltage and the equilbirium constant for a reversible reaction.


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