1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    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!

Is a first order reaction always slower than a second order reaction

  1. Sep 26, 2010 #1
    This is a concept question i was wondering.
    in what instances would this be true and in what instances would this be false.
    im in general chem 2.
  2. jcsd
  3. Sep 26, 2010 #2
    i no that when the reaction is of second order the rate is squared according to how much the factor of the reactant is increased by. The first order reaction increases by the same factor by how much the concentration increases by.
  4. Sep 27, 2010 #3


    User Avatar

    Staff: Mentor

    I guess the question wants you to think in terms of collision theory.
  5. Sep 28, 2010 #4
    well, i played around with it and i know that this circumstance is true when both concentrations are less than 1.
    a second reaction concentration squared of a fraction equals a smaller fraction. :/
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook