Change in Gibbs Free Energy






Moderators: Chem_Mod, Chem_Admin

VivianaHF2L
Posts: 29
Joined: Fri Sep 28, 2018 12:20 am

Change in Gibbs Free Energy

Postby VivianaHF2L » Fri Feb 22, 2019 1:21 pm

What is the difference between deltaG and deltaG with a degree? Like in problem 11.21.

monikac4k
Posts: 56
Joined: Fri Sep 28, 2018 12:25 am

Re: Change in Gibbs Free Energy

Postby monikac4k » Fri Feb 22, 2019 1:33 pm

The degree symbol indicates that the reaction is occurring under standard conditions (usually 25 degrees Celsius, 1 bar pressure, etc.).

Andre_Galenchik_2L
Posts: 69
Joined: Fri Sep 28, 2018 12:23 am

Re: Change in Gibbs Free Energy

Postby Andre_Galenchik_2L » Fri Feb 22, 2019 3:32 pm

They are connected by the equation Delta G = Delta G with a degree + RTlnQ.

Xingzheng Sun 2K
Posts: 62
Joined: Fri Sep 28, 2018 12:29 am

Re: Change in Gibbs Free Energy

Postby Xingzheng Sun 2K » Sat Feb 23, 2019 6:36 pm

△G with Degree means it is the standard Gibbs free energy. Without a degree is not standard. It can be calculated by △G = standard△G + RTlnQ.


Return to “Gibbs Free Energy Concepts and Calculations”

Who is online

Users browsing this forum: No registered users and 3 guests