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!

Homework Help: QUESTION: Chemistry

  1. Jan 23, 2008 #1
    URGENT QUESTION: Chemistry

    i would think that enthalpy of reaction would always have to be greater than activation in order to proceed. however, i thought the rest were false.

    please help me...this is very frustrating.

    This problem involves consideration of the following statements.

    (a) Slow reactions have more elementary steps than fast reactions.
    (b) The slowest step comes last in a reaction mechanism.
    (c) The slowest step comes first in a reaction mechanism.
    (d) Fast reactions have fewer elementary steps than slow reactions.
    (e) Fast reactions have only one elementary step.
    (f) Enthalpy of reaction is larger than activation energy.
    (g) Enthalpy of reaction is smaller than activation energy.

    Which of the following combinations of the above statements is correct?

    all are correct

    none is correct

    (a), (c), and (f) are correct

    (e) is correct

    (d) and (f) are correct

    (a) is correct

    (b), (e), and (f) are correct
  2. jcsd
  3. Jan 24, 2008 #2
    the more intermediate steps you have in a reaction, the slower this reaction will be.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook