Class notes
General Chemistry A: Thermodynamics Lecture Notes #3
- Institution
- Orange Coast College
Lecture notes of 5 pages for the course General Chemistry A185 at Orange Coast College (Professor Maughan)
[Show more]
Seller
Follow
Content preview
Gibbs free energy change of a reaction undernonstandard conditions
Review standard state
- defined as:
1. For a gas, standard state is 1 atm
2. For substance w aqueous solution, standard state is
1 m
3. For element or compound, standard state is most
stable form at 1 atm and temp around 25c
Nonstandard state and reaction mixture
O
- sign of standard free energy change ( g rxn) tells
direction of spontaneous rxn when both reactants and
products are present at standard state conditions
,Gibbs free energy change ( Sg) for nonstandard condition
- to get free energy at conditions other than standard
states, we can use following: natural log
nonstandard
d
G
8.31pSThtem
state
=
Go+RFInQxReaction grottent
↑standard state
Echange forRxn w/all Reactants products at
Temp T
Free energy changes as a reaction proceeds
- we know that as rxn proceeds, composition of reacting
mixture changes. Bc of this, GFE of system changes
continuously
*
lowest GfE is ategullibRNM
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller jamfestcrzy. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now