Entropy, Enthalpy, Free Energy.

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Jerome Mercado 2J
Posts: 60
Joined: Tue Nov 28, 2017 3:02 am

Entropy, Enthalpy, Free Energy.

Postby Jerome Mercado 2J » Fri Feb 08, 2019 11:13 am

How is entropy, enthalpy, and free energy related?

I know that you can combine entropy and enthalpy to equal free energy ( the total energy). When solving thermodynamic problems and equations, I am still unsure what the relationships are. When do you use one equation over the other?

Maria Solis Disc 1G
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am
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Re: Entropy, Enthalpy, Free Energy.

Postby Maria Solis Disc 1G » Fri Feb 08, 2019 5:48 pm

entropy is q(reversible)/T. q(p=reversible)= delta H (enthalpy) if pressure is constant.

Jennifer Torres 2L
Posts: 62
Joined: Tue Nov 14, 2017 3:01 am

Re: Entropy, Enthalpy, Free Energy.

Postby Jennifer Torres 2L » Sun Feb 10, 2019 12:29 pm

Enthalpy (H)- measure of how much energy is released or absorbed during a chemical reaction.
Entropy (S) - measure of disorder or randomness in the system
Gibbs free energy- amount of energy left over after a chemical reaction has happened.

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