Chapter 1

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  1. Pico

    Symbol
    Multiple
    p

    Image Upload 1
  2. Giga

    Symbol?
    Multiple?
    G

    10^9
  3. What is the most important potential energy storage molecule in all cells?

    If Image Upload 2 of system is negative, has the disorder of that system increased or decreased?

    Given that cellular rxns take place in the liquid phase, how is H related to E in a cell?
    ATP.

    Decreased.

    They are essentially equal, since volume will essentially be constant for a liquid (or a solid) Image Upload 3
  4. If the products in a reaction have more entropy than the reactants and the enthalpy (H) of the reactants & products are the same, can the rxn occur spontaneosly?
    Yes, if Image Upload 4 and Image Upload 5

    Image Upload 6
  5. When there are equal concentrations of reactants and products, is the rxn spontaneous or nonspontaneous?
    Neither, since Keq = 1, Image Upload 7

    Image Upload 8
  6. Theoretically, will all reactant and product system sreach equilibrium?
    Given enough time, yes.
  7. If you find the standard value of G, can you use it to study a reaction in a moose?
    No, must have concetnrations of A, B, C, and D. If G is positive (nonspontaneous), but [reactants] >> [products], the reaction will be favorable.
  8. Which equation is used when finding the Gibbs Free Energy of an actual rxn?
    Image Upload 9

    Image Upload 10
  9. What is the difference between thermodynamics and reaction rates?
    Thermodynamics tell you whether the rxn can proceed w/o additional energy input, but tells you nothing about the speed!
Author:
marysham
ID:
190217
Card Set:
Chapter 1
Updated:
2012-12-22 17:58:43
Tags:
MCAT
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Description:
Units & Dimensions, Kinematics,
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