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Chem doubts

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nid404:
after im done with my school work :)

MaNi_DaDuDe:

--- Quote from: \m/ |\|!d \m/ on March 24, 2010, 10:47:03 am ---after im done with my school work :)

--- End quote ---

Great work you doing Nid, as always.

+rep. :)

sweetie:
Q9> da ans. is A, but if so why is da initial rate of da reaction lower than the original exp.??????????
Q.16> plzz xplain

Q.17> mentioned in da que. dat excess of oxygen is available so i thought dat da
CO----> CO2 and da SO2-------> SO3
rrrrrrrrite??? ???




plzzzzzzzzzzz reply

nid404:
Q9)
I don't knw how the reaction rate came in here :-\
Anyway I'll explain

Kc= [X2Y]2
        [X2]2[Y2]

Kc=2
ratio of X2Y and X2 is the same....hence conc same....
they get cancelled in the eqn above...
therefore 1/[Y2] =2
conc of [Y2]= 1/2=0.5
for reaction two

 Ratio of Y2: X2: X2Y
               1             : 2                   :2
Kc= [0.5]1/2 [1]
        [1]
=1/root 2
    

nid404:
Q16)  Cl is more electronegative than Iodine. This is because its radius is much smaller...HCl bond is therefore stronger, shorter bond length

Q17) Ok...the ans to that is..the conversion of SO2 to SO3 is a reversible reaction and is exothermic, at high temperature when burning in the air, it is bound not to happen...It require a catalyst too(V2O5 as in contact process)

hope that helps

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