Laboratorio N°2: Cinética química

GUÍA N°2 CINÉTICA QUÍMICA

Laboratorio Labora torio N°2: Cinéca química LABORATORIO LABORATORIO DE QUÍMICA INORGÁNICA - UNIVERSIDAD TECNOLÓGICA DEL PERÚ

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QUÍMICA INORGÁNICA

LAORA!ORIO N° 2 CIN"!ICA QUÍMICA I#

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(RINCI(IO' !% !%)RICO' CIN"!ICA QUÍMICA L! )#(8,)! ./$#)! es (! %!r'e *e "! ./$#)! (e'!$e('e e9%er#$e('!" e9%er#$e('!" .e es'*#! "! r!%#*e: )&( .e 'r!(s)rre( "!s re!))#&(es ./$#)!s & '!$b#8( *e(&$#(!*! e"&)#*!* *e re!))#+(0

&%LOCI*A* *% R%ACCI)N L! e"&)#*!* *e (! re!))#+( ./$#)! se )&(&)e )&$& (! e"&)#*!* *e *es)&$%&s#)#+( & *es!%!r#)#+( *e ( re!),& 1 ! s e: )&$& "! e"&)#*!* *e ;&r$!)#+( *e ( %r&*)'&< )&(;&r$e 'r!(s)rre 'r!(s)rre "! re!))#+( ./$#)!0 C&(s#*ere "! s#=#e('e re!))#+( ./$#)!> +3 →2 =

−∆[ ] ∆t

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3∆t

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−∆[ ]

∆[ ]

2∆t

Donde:

?A@< ?B@ 1 ?C@> C&()e('r!)#+( $&"!r $&"L50 L&s s#=(&s (e=!,&s #(*#)!( .e "!s )&()e('r!)#&(es )&()e('r!)#&(es *e "&s re!)'!('es re!)'!('es A 1  *e)re)e( )&( e" ,e$%&< 1 e" s#=(& %&s#,&< .e "! )&()e('r!)#+( *e" %r&*)'& C !$e('! )&( e" ,e$%&0 L! *e6(#)#+( *e e"&)#*!* (&s #(*#)! .e  se )&(s$e *es!%!re)e5 4 e)es $s r%#*& .e A< $#e('r!s C se %r&*)e !%!re)e5 2 e)es $s r%#*& .e A< ! $e*#*! .e es'! ",$! se )&(s$e0





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1

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Se *ebe !)er %rese('e .e e" &r*e( *e re!))#+( se *e'er$#(! e9%er#$e('!"$e('e 1 (& *ebe ser re"!)#&(!*! )&( "&s )&e6)#e('es *e "! e)!)#+( es'e.#&$e'r#!< e9)e%'& s# "! re!))#+( &)rre e( (! s&"! e'!%!0






7AC!OR%' QU% IN7LU+%N %N LA &%LOCI*A* *% R%ACCI)N S&( "!s s#=#e('es> 

La conc,ntraci0n conc,ntraci0n A $!1& $!1&rr )&()e( )&()e('r 'r!)#+ !)#+( ( *e "&s re!), re!),& &s< s< $!1&r $!1&r ser ser "! %r&b! %r&b!b#" b#"#*! #*!* * *e .e se %r&*:)!( )&.es e('re ss %!rH)"!s< es *e)#r )!(*& !$e('! "! )&()e('r!)#+( *e "&s re!),&s< !$e('!r "! e"&)#*!* *e re!))#+(0 ∆[ ] → ↑ ∆

↑

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La t,m3,ratura A" !$e('!r "! 'e$%er!'r!< e" $&#$#e('& *e "!s %!rH)"!s es $s r%#*& %&r "& )!" se %r&*)e( $s )&.es< !*e$s "!s %!rH)"!s ,e(e( $!1&r e(er=/! )#(8,)! 1 %&r '!('& "&s )&.es s&( $s e6)!)es< es *e)#r s# "! 'e$%er!'r! !$e('! !$e('! "! e"&)#*!* *e re!))#+( !$e('!0 ↑

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+ 3

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E" 1&*!'& (& )&(s$#*& e( e" %!s& !('er#&r re!))#&(! )&( e" 1&*r& %!r! ;&r$!r 1&*&< .e e( %rese()#! *e b#s"6'& es re*)#*& ! 1&*r&0 5 − + 6 + + +

2

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LABORATORIO N° 2> CINÉTICA QUÍMICA

PÁGINA 4





QUÍMICA INORGÁNICA III#

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20 S# b#e( %!re)e %!re)e 'e(er .e .e !s'!r !s'!r !r#&s !r#&s %!r$e'r& %!r$e'r&ss %!r! ""e=!r ""e=!r ! "! s&")#+( re.er# re.er#*!0 *!0

40 L! e"&)#*!* e"&)#*!* *e "! re!))#+ re!))#+( ( *e%e(*e *e%e(*e "! re!))#+( re!))#+( *e "&s re!),& re!),&s0 s0

III# III# CU%' CU%'!IO !IONA NARI RIO: O:

0 [C+$& !;e) !;e)'!r/! '!r/! ( ( #()re$e( #()re$e('& '& e( "! 'e$%er 'e$%er!'r !'r!! ! "! e"&)#*!* e"&)#*!* *e "! re!))#+( re!))#+( !(!"#:!*! e( "! %!r'e e9%er#$e('!"\ e9%er#$e('!"\ U( !$e('& *e 'e$%er!'r! !$e('!r/! "! re!))#+( *e #(*e%e(*e()#! #(*e%e(*e ()#! 1! se! *e ;&r$! e9&'8r$#)! O e(*&'8r$#)!< %&r e""& "! 'e$%er!'r! !" !$e('!r e" ($er& *e $&"8)"!s .e )&"#s#&(! ( 'r!s &'r!< "! e"&)#*!* *e re!))#+( se *%"#)!r/! %&r e" !$e('& *e 'e$%er!'r!0

20 [P&r [P&r .8 es (e)es! (e)es!r#& r#& e" s& s& *e !"$#*+( !"$#*+( e( "! "! re!))#+( re!))#+( ./$#)! ./$#)!\\






40 C&( ss *!'&s *!'&s &b'e(#*& &b'e(#*&s< s< e( ( %!%e" $#"#$e' $#"#$e'r!*& r!*&<< re!"#:!r re!"#:!r ( =r6)& =r6)& ,"#:!(*& ,"#:!(*& "&s *!'&s *!'&s *e "! )&()e('r!)#+( *e ?9IO ?9IOP ee 5 1 ,e$%& ee ]50

CONCENTRACIÓN ?3IO 4@ s0 T#e$%&

5 L A " & $ 2 ( + # ) ! r ' ( e ) ( & C

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;O$A *% CÁLCULO' 1.Para la concentración de cada reactivo:

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Laboratorio N°2: Cinética química

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