Understanding Bond Enthalpies: Make and Break Bonds

  • Thread starter Thread starter Beeorz
  • Start date Start date
  • Tags Tags
    Bond Bonds Break
Beeorz
Messages
30
Reaction score
0
Bond Enthalpies..please help!

Got the first one, but can't figure out how to do "b" and "c." Not understand which ones make/break.

http://rapidshare.com/files/157266091/Enth.jpg
 
Physics news on Phys.org


If you don't see it, try brute force approach - list all bonds before reaction and after reaction.
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...

Similar threads

Back
Top