Predicting Gibbs Free Energy Sign






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Victoria_Reimers_3L
Posts: 16
Joined: Fri Sep 25, 2015 3:00 am

Predicting Gibbs Free Energy Sign

Postby Victoria_Reimers_3L » Sun Jan 31, 2016 11:38 pm

Are you able to predict the sign of the Gibbs free energy for a reaction given only the temperature, and if so, how would you do this?

304621080
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Re: Predicting Gibbs Free Energy Sign

Postby 304621080 » Mon Feb 01, 2016 12:08 am

No, because it is also dependent on the enthalpy of the reaction.

Cameron_Greenberg_3C
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Predicting Gibbs Free Energy Sign

Postby Cameron_Greenberg_3C » Wed Feb 27, 2019 8:36 pm

Gibbs Free Energy is dependent on temperature, entropy, and enthalpy. A high temperature can still be multiplied by a positive or negative value of change in entropy, so just knowing the temperature does not give the sign of the Gibbs Free Energy value.

Katie Sy 1L
Posts: 57
Joined: Fri Sep 28, 2018 12:18 am

Re: Predicting Gibbs Free Energy Sign

Postby Katie Sy 1L » Wed Feb 27, 2019 8:46 pm

you can't predict it based on just temperature. you would need enthalpy or entropy or both


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