Balancing chemical equations for Delta Gr






Moderators: Chem_Mod, Chem_Admin

Natalie Yakobian
Posts: 45
Joined: Fri Sep 25, 2015 3:00 am

Balancing chemical equations for Delta Gr

Postby Natalie Yakobian » Fri Feb 05, 2016 2:48 pm

Hi,
I was wondering when your balancing chemical equations for Delta Gr are there any rules like there are for Gf, or delta Hf, where you must have only one mol of product so reactant coefficients may need to be in fraction form?

For example in one of the past midterms (2012 question 6A) the reactant oxygen is balanced with a fraction. Is this always the case? Is it wrong to balance with whole numbers but then get more than one mol of product?

Thanks!!

Chem_Mod
Posts: 18739
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 635 times

Re: Balancing chemical equations for Delta Gr

Postby Chem_Mod » Sat Feb 06, 2016 10:24 am

I don't think delta Grxn has to be in per mole unit. You can balance the reaction using integers and after calculating the Grxn, it will just be multiples of the given answer. They essentially mean the same thing if you convert your answer to per mole.


Return to “Gibbs Free Energy Concepts and Calculations”

Who is online

Users browsing this forum: No registered users and 4 guests