2013 Final Q3C


Moderators: Chem_Mod, Chem_Admin

Post Reply
Rachel Tat 3E
Posts: 31
Joined: Fri Sep 25, 2015 3:00 am

2013 Final Q3C

Postby Rachel Tat 3E » Sat Mar 12, 2016 10:28 pm

Under what conditions would we use logQ instead of lnQ in the nernst equation? I was using ln for this problem, but in the answer key we use log.
Top
Mallika Varkhedi 2E
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: 2013 Final Q3C

Postby Mallika Varkhedi 2E » Sat Mar 12, 2016 10:35 pm

I think if the temperature is at 25 degrees celsius, you can use either. If it isn't you would use ln.
Top
Chem_Mod
Posts: 23858
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 1253 times

Re: 2013 Final Q3C

Postby Chem_Mod » Sun Mar 13, 2016 4:30 am

The equations are interchangeable, but the one that does not include T in the equation assumes the reaction proceeds at 298K.
Top
Post Reply

Return to “Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)”

Who is online

Users browsing this forum: No registered users and 6 guests