Standard Gibbs

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Justin Bui 2L
Posts: 51
Joined: Fri Sep 29, 2017 7:06 am

Standard Gibbs

Postby Justin Bui 2L » Thu Mar 15, 2018 3:53 am

Can someone give me a concise explanation of what standard means? Or when Delta G has that little degree sign following it. This also shows up in other formulas.

Harjas Sabharwal 1G
Posts: 42
Joined: Sat Jul 22, 2017 3:01 am

Re: Standard Gibbs

Postby Harjas Sabharwal 1G » Thu Mar 15, 2018 4:58 am

I'm pretty sure that standard refers to the standard state of the molecule (Ex: gas, liquid or solid). It is also at 273.15K and 1 atm pressure.

Posts: 54
Joined: Thu Jul 27, 2017 3:00 am

Re: Standard Gibbs

Postby Seth_Evasco1L » Thu Mar 15, 2018 10:11 am

Standard just indicates that all reactants and products are in their standard state.

Standard state for a gas is 1 atm. Standard state for a solution is 1M at 1 atm. Standard state for an element is the most stable phase (solid, liquid, gas) at 1 atm and temperature of interest (250C).

Rishi Khettry 1L
Posts: 29
Joined: Fri Sep 29, 2017 7:05 am

Re: Standard Gibbs

Postby Rishi Khettry 1L » Fri Mar 16, 2018 7:18 pm

The sign indicates standard state which means it is taking place under standard conditions (aka 25 degrees Celsius and 1 atm)

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