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UNIVERSIDAD MAYOR DE SAN ANDRÉS QMC 206 LFACULTAD DE INGENIERÍA LABORATORIO DE FISICOQUÍMICA

VEGA GUZMÁN ANDREA 8484290 L..

INFORME N° 1

DETERMINACIÓN DE LOS COEFICIENTES DEEXPANSIÓN Y DE TENSIÓN DE LOS GASES

1. OBJETIVOS:

!. D"#"$%&'!$ "( )*"+&)&"'#" ," "-!'/&' #1$%&)! 3 5!$&!',* "(5*(%"' ,"( 7!/ "' +')&' ," (! #"%"$!#$! ! $"/&' )*'/#!'#".

. D"#"$%&'!$ "( )*"+&)&"'#" ," #"'/&' 5!$&!',* (! $"/&' ,"( 7!/"' +')&' ," (! #"%"$!#$! ! 5*(%"' )*'/#!'#".

2. FUNDAMENTO TEÓRICO

a. C*"+&)&"'#" ," "-!'/&' #1$%&)!

E( "+")#* ," (! ,&(!#!)&' "' (*/ 7!/"/ "/ "( %:/ "5&,"'#" ," #*,*/. L*/ 7!/"/5!$;!' ," +*$%! )(!$! / 5*(%"' #!'#* )*' (! #"%"$!#$! )*%* )*' (! $"/&',"&,* !


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• T? I')$"%"'#* ," #"%"$!#$!


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b. C*"+&)&"'#" ," #"'/&'

D" !)"$,* ! (! /"7',! ("K ," C>!$("/ G!KL//!)@ )!',* '! %!/! ," 7!/"5*()&*'! ! 5*(%"' )*'/#!'#"@ (! $"/&' 5!$;! "' +')&' ," (! #"%"$!#$! "'

+*$%! $**$)&*'!( !( !%"'#!$ (! $"/&' !%"'#! "( 5*(%"' ," !)"$,* ! (!/&7&"'#" ("K?

P2= P1 ⋅ (1 + βp ⋅ ∆t)

D*',"?

• P2 "/ (! $"/&' "' "( "/#!,* 2 * +&'!(.• P1 (! $"/&' )*$$"/*',&"'#" ! '! */&)&' &'&)&!( * "/#!,* .• βp "/ "( )*"+&)&"'#" ," #"'/&' ,"( 7!/ ! 5*(%"' )*'/#!'#"@ )K* 5!(*$ "/

&7!( ! 2@ HC !$! #*,*/ (*/ 7!/"/ &,"!("/.

E/#" )*"+&)&"'#" "/ &7!( !( 3 )*"+&)&"'#" ," ,&(!#!)&' ,"( 7!/ ! $"/&')*'/#!'#". R")*$,"%*/ !/#! (("7!$@ /& "/* +"$! */&("@ !( 0 7$!,*"(5&'. *$ *#$! !$#"@ !$! '! #"%"$!#$! )!(


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3. PROCEDIMIENTO


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. !OJA DE DATOS

". C#LCULOS Y DIAGRAMAS

a. G$a%&'a$ () *+ V,

-20 0 20 40 60 80 1000

0.5

1

1.5

2

2.5

3

t °C

V cm³


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b. A-+)a$ /a)0+ /&a) 4 5)0/0 / 6&0+ 'a/$a/0+

V = K ∙ (t +273,15 )= K ∙T =Vo∙ α ∙T

V =8,14357589067×10−3∙ t +1,7176769328 [cm3 ]

'. D)$&a$ 4 '0%&'&) / /&4a)a'&7 )5$&'a a 8a$)&$ / 40+/a)0+ a-+)a/0+

8,14357589067×10−3=Vo∙α

Vo=17 ∙ π ∙0,22 [cm3 ]

α =3,81203046307×10−3

[ 1

cm3 ]

/. D)$& 9$%&'a) ; aa46)&'a) 4 '$0 ab+04)0

t =−1

α → t =−262,327389481° C

-300 -250 -200 -150 -100 -50 0 50 1000

0.5

1

1.5

2

2.5

3

t °C

V cm³


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. D)$& 4a '0+)a) / 8$080$'&0a4&/a/

V = K ∙ (t +273,15 )= K ∙T =Vo∙ α ∙T

K =8,14357589067×10−3[ cm

3

°C ]

%. D)$& 4 *04 / 9a+ a 2". ?Pa$a @5 8$+&7 + *4&/0 +) *a40$ / =

!$!? Po=433 [mmHg ]


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a. G$a%&'a$ 4a 8$+&7 %'&7 a 4a )8$a)$a

-20 0 20 40 60 80 1000

100

200

300

400

500

600

t °C

P mmH


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b. A-+)a$ 40+ /a)0+ /&a) 4 5)0/0 / 6&0+ 'a/$a/0+

P= K ∙ (t +273,15 )= K ∙ T = Po ∙ β ∙T

P=1,51576351346 ∙ t +405,388577637 [mmHg ]

'. D)$&a$ 4 *a40$ /

1,51576351346= Po ∙β

Po=433mmHg

β=3,50060857612×10−3

/. D)$&a$ 9$%&'a) ; aa46)&'a) 4 '$0 ab+04)0

t =−1

β →t =−285,664614668°C


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-350 -300 -250 -200 -150 -100 -50 0 50 100 150

0

100

200

300

400

500

600

t °C

P mmH

. D)$&a$ 4a '0+)a) / 8$080$'&0a4&/a/

P= K ∙ (t +273,15 )= K ∙ T =Vo∙ β∙T

K =1,51576351346 [mmHg

° C ]%. D)$&a$ 4 $$0$ 80$')a4 / $+8')0 a4 *a40$

b&b4&09$%&'0

E β=|1−α expα teo|∙100

E β=4,58

9. ?Pa$a @5 *04 + *4&/0 4 *a40$ /

!$!?


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Vo=17 ∙ π ∙0,22 [cm3 ]=2,136 [cm3 ]

. CONCLUSIONES

L! $"/"'#" $:)#&)! /" $"!(&= )*' "+")#&5&,!,. L*/ "$$*$"/ )!()(!,*/ ,"!%!/ )*'/#!'#"/ '* /*$"!/!' ' 5!(*$ ,"( @ *$ (* )!( /")*'/&,"$!' (*/ ,!#*/ #*%!,*/ )*%* !,")!,*/. G$!)&!/ ! "/#* *,"%*/)*')(&$ ##?&'7.''".",.!$+&/&)!2L.,+ • >##/?.+&/&)!(!.)*%!!$#!,*,&(!#!)&*'#"$%&)!)*'#"'&,*/
http://ing.unne.edu.ar/pub/fisica2/L1.pdfhttps://www.fisicalab.com/apartado/dilatacion-termica#contenidoshttps://www.fisicalab.com/apartado/dilatacion-termica#contenidoshttp://ing.unne.edu.ar/pub/fisica2/L1.pdf

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