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Dr. P. D. Topham

Room MB128A

p.d.topham@aston.ac.uk

Chemical KineticsCE1103 & CH1103(Physical Chemistry)

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Structure of this Course

1! "ectures #a$orator% sessions &p"us reports'

(ritten )*am  +, -

#a$orator% ork  // -

0or each "ecture

%ou must arrie ith the notes fromB"ack$oard printed out read% to fi"" in the

$"anks

and there i"" $e 3uestions at the end

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Recommended Te*t$ooks

0undamenta"s of chemica" kinetics

S R #o4an

Ph%sica" Chemistr% P ( Atkins

Reaction 5inetics M 6 Pi""in4

P ( Seakins

http://www.amazon.co.uk/gp/product/images/019855527X/ref=dp_image_0/026-6899273-7879619?ie=UTF8&n=266239&s=bookshttp://www.oup.com/uk/catalogue/?ci=9780198700722

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Course 7ut"ine

ntroduction to Chemica" 5inetics

Determinin4 rates of reactions 7rders of reactions

Rate "as

The inte4ration method9 p"ots

:a"f;"ife and time constant

nitia" Rate < so"ation methods

Co""ision Theor% s Transition State Theor%

Temperature effect on rates= Arrhenius

Beer;#am$ert #a

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(hat is >Chemica" 5inetics?

5inetics is the  

  occurrin4 in a  

:o does this happen

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Rate

Definition

“___________________________________

 _________________________________” 

:o does this re"ate to chemistr%

  

Rate of a chemica" reaction is associated

ith the chan4e in of a

chemica" ith respect to  

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Rate

Therefore rate can $e defined as

Rate of  

&chan4e in '

Rate of  

&chan4e in '

PE F  

RE F  

7R

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Concepts

:o to measure the rate

 G Heed to measure the  

(hat is the meanin4 of

:o to  

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 G The% depend on the amount of materia"

mportance of concentration

  and are  ________ 

properties

Distinction $eteen and

  

  is an  ________ propert%

 G independent of the amount of materia"

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 A chemist measures the amount of

su$stance in  _________ of the materia"

&not '

Definition of concentration

  

  

  

Concentration F  

F

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Representation of concentration

n so"utions

Iases

Concentration F F & '

Concentration is  

Concentration is  ___________________

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(hat is pressure

Pressure is the  

Pressure F & ' mo".dm/

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(hat is the pressure of 4as

t is sti"" JJJJ

 G But the

Measured as the > __________________ ?

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(hat a$out indiidua" pressures ma4ine a container ith  

This has a tota" pressure of  

Ho add

  

This no has a tota" pressure of

  

This is knon as  

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Da"tons "a of partia" pressures

  

  

    

p F F  

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Representation of concentration

n so"utions

Iases

Concentration F F & '

Concentration     ∝

∝

as a$oe

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The idea" 4as "a

This orks for and  

pK F nRT

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Luestions1. (hat is chemica" kinetics

1. (hat is measured hen inesti4atin4 rates of

reactions in so"ution

/. (hat is measured hen inesti4atin4 rates of 4aseousreactions (h%

!. (hat is the concentration of !./2 4 HaC" disso"ed in2 m" :27

N. 1./1 4 C"2 4as is contained in a 1. cm/ container at

room tem erature. (hat is the ressure of the as

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0or ne*t eek

Remem$er to print out %our

s"ides and $e prepared to dra

a simp"e 4raph