CHEMICAL KINETICS

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In a reaction NH4NO2 â†’ N2(g) + 2H2O (l) the volume of N2 after 20 mins and after a long time is 40ml and 70ml respectively ...the value of rate const is:
a)(1/20)ln(7/4) /min
b)(2.303/1200)log(7/3) /sec
c)(1/20)log(7/3) /min
d)(2.303/20)log(11/7) /min

#Chemistry #Physical Chemistry

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4 Answers

paaaanm taaaanm ·2012-06-16 22:33:01

hint; after infinite time all the reactant will be converted into product

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Sambit Sekhar Panda ·2012-06-16 22:58:02

can u explain

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Nitu Sharaff ·2012-06-19 03:42:09

this means tht in infinte time the reaction will be complete soo.. we can say NH₄NO₂ volume of 70 ml
after 20 mins N₂ formed is 40 ml ..thus NH₄NO₂ remaining is 70-40=30ml.

now frst order reaction
ln(A_OA) =kt

k=2.303 log(7030) 120

n u get the ans :)

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Nitu Sharaff ·2012-06-19 03:49:39

u covert time in secs !!
ans would be option B ..

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CHEMICAL KINETICS

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