1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Pyruvic acid decomposition

  1. Oct 22, 2015 #1
    1. The problem statement, all variables and given/known data
    Consider the reaction of pyruvic acid (CH3COCOOH) into gaseous acetaldehyde (CH3CHO) and gaseous CO2, which is catalyzed an aqueous solution by the enzyme pyruvate decarboxylase. Assume ideal gas behavior only for the CO2.
    (a) Calculate ∆298 0 for this reaction.
    (b) Calculate ∆ for this reaction at 298 K and 100 atm. State an important assumptions in addition to ideal gas behavior.

    2. Relevant equations
    ΔΔG=nRT ln(P2/P1) for part (b)
    (So ΔG298K and 100atm=ΔGo+ΔΔG)

    3. The attempt at a solution
    EDIT: professor provided a table of standard free energies of formation for the reactants and products, I got standard free energy change for the reaction in part (a), it's -53.39kJ/mol
    Now I need to do something about the non-ideal gas produced and the mol fractions of each gas to find the pressure before reaction and the pressure after reaction to plug into the equation above
    Last edited: Oct 22, 2015
  2. jcsd
  3. Oct 27, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Discussions: Pyruvic acid decomposition