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question from the dat- chm

Discussion in 'DAT Discussions' started by kevin512, Apr 24, 2007.

  1. kevin512

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    I didn't study for the chm portion of the dat. I the took the 2006 released version of the dat and got a 19. I need some help with the following question:

    54. At a constant temp when the following reactions involving gas are at equalibrium, which reaction shifts to the right if the pressure is increased?

    a. 2H_2_ + O_2_ --> 2h2o
    b. 2NO --> N_2_ + O_2_
    C. 2CO_2_ --> 2CO + O_2_

    I guessed it has something to do with entropy?

    Also, how do you do number 57 (if anyone has the test)?

    Thanks,
    Kevin
     
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  3. nate28

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    A. 2H_2_ + O_2_ --> 2H2O
    Maintaining equilibrium with an increase in pressure will shift towards the side with less moles of gas b/c that will occupy less volume.
    B has no change in the number of moles, and C has an increase.
     
  4. thebluebmw

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    Where can i get the 2006 released DAT, can u send it to me if possibly?
     
  5. jdmsamurai

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  6. DASicari

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    Is that DAT the same test as the actual test from last year?
     
  7. ATLATLATL

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    what did u guys think of the PAT on this practice test?
     
  8. Lonely Sol

    Lonely Sol cowgoesmoo fan!

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    I think the whole test is crap, just a good energy booster!! Ppl should take it the last day before the test, it will give you a ready feeling, which is a must before the test. (Just dont depend too much on it as far as studying goes)!
     
  9. infernobutterfl

    infernobutterfl Pyro user

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    lol... moral booster.. :)
     

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