Pls tell me!

Rate of a reaction can be expressed by Arrhenius equation as:

k=Ae-E/RT

In this eqn, E represents?

a......

b......

c. the energy above which all the colliding molecules will react.

d. the energy below which colliding molcules will not react.

Don't c and d mean the same???

10 Answers

1
°ღ•๓яυΠ·

c means d enrgy bove wich d colliding molecules will rxt .........

d means d enrgy below wich d colidn molecules wnt rxt ....

in d u cant say they wnt rxt .......few may still rxt
so itz c

1
Pavithra Ramamoorthy ·

ya.. d means d threshold energy..

E in d equation is d activation energy..

i.e d additional energy other than d energy acquired by collision...

1
Aditya ·

Sorry dears....but i still dont know the exact dirrerence between activation enrgy n threshold energy...i've read it in a couple of books, but didnt get it exactly:(

Mrunal or Ram, cud u pls explain in short?

1
voldy ·

hope this makes it clear

1
Pavithra Ramamoorthy ·

threshold energy is d minimum energy needed to make collisions effective... dis s must fr a collidin molecule..

as i tol additional energy required is activation energy..

or see dis one..

ACTIVATION ENERGY= THRESHHOLD ENERGY - ENERGY OF COLLIDIN MOLECULES..

1
Aditya ·

Thanks Srinath and Ram!

1
voldy ·

;) so from when are u going offline ? :P

1
Aditya ·

lol...i had decided to be, but came for sumtym...do u want me to go Sri?[2]

1
voldy ·

hahaha nothign wrong meant , just seeng ur signature.
yes , I'd hope that u go and study seriously for AIEEE and other xams you're taking up if you're in 12th and if you're in 11th well stay on for a bit longer but don't overdo

1
Aditya ·

yes..sure :)

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