November 25, 2024, 07:16:24 AM
Forum Rules: Read This Before Posting


Topic: Pressure in nernst equation  (Read 4582 times)

0 Members and 1 Guest are viewing this topic.

mr.fuscoII

  • Guest
Pressure in nernst equation
« on: January 16, 2006, 04:46:10 PM »
I read that pressure is supposed to be a factor that can be taken into account in the nernst equation. Does anyone know where it is in the equation?

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27862
  • Mole Snacks: +1813/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re:Pressure in nernst equation
« Reply #1 on: January 16, 2006, 07:07:26 PM »
Take a look at the first form of the Nernst equation - it contains ln(Q), where Q is reaction quotient. For
reaction like

2H+ + 2e- -> H2

Q = pH2/[H+ ]2

That's where the pressure goes.
« Last Edit: January 17, 2006, 09:21:17 AM by Borek »
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Sponsored Links