Thermochimie 1 MP

TD 4 : Thermochimie 1Correction

1

4HDA-=- Lif Ho CC4-,j) - {Jf Jf=> (W, J) - 1 L)f}\o(Oz,3)

4 H0

11 = - 3~2/l2 - (-!t013S") - 0 = -282..10 kT rnef _,

tj Co.z_ :J) + ~ 0) ~ (0 ~) -t- 't_ 0 (3)

L\-k0,_= J.f~o Cto,jJ -t ~1 HoU~O \J)) - bf!t0 (éo2-,3J-6t~c(~ 1j)

CÀ.\tE?L ~ ~o ~0 'jJ== ,Df ~c ~o,1) -+ ~\-to (~~0) .

..Qt ~)\0 (~2.-, JJ -=- û (é\;ol ~~ ck. récfértAcn.) -R(\~~

1 br 1-\ ".,_"' 61 ~-~~ c to, J) + ""1 1\" ( 11,0 ,1) + ~ 1\" (vip) - llf l\.0 (tô,_Jj)

6rl-t~ = - l~o,~s -+ (-2.8S1 3~) + tt~, t2. - (-31-\~ "J2.-)

t6r\-\0

'l.-=- ~0/1~ k~. ~-'

1

lf_xa-ci CL 3 : cA.a.r:;rlli.R/\f- d 'éfAf_ 1

l.ho (.e) ~ ~o (j) ~VC>ft\ 0 ( 3-13 K)= 4q0 ki.mol-'

G -H: == u~Q + RT rus vW\ éJU- rrf~ Hw.o = l)l'l\a fen-V ~ fh.o.R,e_ ~

&ter ~o ~ -H; U~o,j)- H: c~o/) = LJ~o (~0 1 j) -t R.T - u: (\\0, ~ J = ~Uo + RT

d'm._ i L't-v"f LI" =- Ll4' J.\ a - RT )

AN·. t6vo.f \t-= lto,b .AD3 _ & 1~14"' ~~ == 3~1 S'. ~T.r'Y\):)1-'

1

(3) A"""F Il" (l1 ) = 6\mf \\a (T.) + l [ q,~ (~0 1 ~) - c; (11,_01-t)J di

l ~llo C~) =- 6~W(b) + [G>~ (ll:PJ3}-q,: (~o/J]ll;,-To)

-AN: ~ ~o ( t.tOO K) ~ ~01 b. ~0 ~ -r [~31 6 - 1-5,~ J )((400-31~J ~\-\0 (fmK) = 3~, 5 . .b..J. ~\-~

•

ex ~?= 4H -al ~ ~t JW) ~~ d 1 f"h\ . ~ ~ tciw1s ~~o.__~ ~ Jo. ~

ck_ s~ ~X (]) rfu~ do}~~'~ ck ~0 ~J O. ?S .. C ::::- To

@ èch.o..u.jjef<I.W- du. rrM.~eu. ré~~W ck lo <i T~ . 0 == LL~ ::::. .6J..l_, -+ .6.142

= '3f L:l,f\o + J2 C'fdl

-:p~ .. U.J\ o.V&.r\CQmW ~ J ~ (!f =- -:i ~) 1

o.uec d::ès &b~fs ~~ aux: t·~r()rhcrY\1.) st-œc~·,<t>wtrl 9\A.GI.), .ert f(\ ci2 Mct.:c" , h ~ ~ ti ~ dit ~0 ~ 4o = Ci>~ l~2.0 1 jJ== ~,1. 4- ~,b.AD 3

T ( TK-'mo/-')

bl'\ "'- \)~ 6.f"o + ~T&.+hT) dl ~ L'ltl-\ 0 + o lT.t- lo) -t ~ b (T{- "\,

2)

Nu~r-lcj\AQ~Yû!J- 1 T,ç ~0

~1'\ de Q4~" ciu- gz~ ~ : -3 2.. -~ r\2. 3

lf,'g.1o 7ï + :x:>,-1 '.J - ~tfx.2ti8 - ~!.to )((2.4~; -242.(0 .= o

~ -'*'-re ~ 11 = 41-SD K ~

Œ) Ç\ k dl~ ~W\L ~ Lo. ~1'\ pl\)~ di .l'WJ- 1 ~ jo. ,~ ~ ck_ ~ d..u. ~'-oQ do-M k rrM.~ ~0-~.

1

P€()..{ ...lli\ Cl~œYY\û\+ _t"" o..\ ck 1... ~ O"l- Cl LC"N. ~ IY\o = ~f- :::. o1) rrd }''~ 1 2-- 2-

de. 02. . 'Il 2J o. ~L ~2-= t'Y\o2 = '2 ~ c:k_ t\:().U:h,_

LI 4~ t)= DJ..\= ~,-t~~ ~ dé:'8Q~

D 11 o s T.ç (. o ~ J _ == ;}f 6r t'\ -t To L'~>~1..o ~N' l~D) -+ "'Nl. Cpl\'\ (N'l-) d \

1'e-u.r ~t = d_ ~

0= l\f!t + jTf§-thT + 2>< ~R.}W TQ -3 2. 2.)

Q:: -2~2 . ,-~~-+ (9o,A+ ~"~/~14. J(T.ç- 2'1'1S) r 1 q,c..IO (Tf -2qi

"1.1 WAI: ['J' 1 ==- 2.bbo 1<.. ] Tf <lç k.,;;., .

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( fx=<t:P. 5 : !;1.ù.~bres iW.U.sincls J

Cor~)+ ~2-0 ~)~ 002 (1)+ 1-1'- ~) (11)

B b.. ri-\ o_, = 6~ W (((),_) _,_ L'lt !{" (\-\,.) - 6tfl0 (Co)- L'lJ 1-t"(~o) d 1 a..t'Nn Lo. ~ ck \-\e~ -

~ r \-' .eAt c(()JV:) ~ :eto.x ~6-.ruh o.rd ck ~JJr-eA œ. : L\ .\-\ ~( \\.) -=. 0 2.

-=u ~~ Ll,U~ = -3ct4 + o -(-uo) - ( -2t.,2)

Ll.r ~o = - 42 kT.~-'

CO(~) -+ H2..0 ( .e) ~ CD2 r j}+ ~2- (~J

\ Ôf H~ = A- k0

,;_ + 6vo.\' \-1° ( H,o J l -AN ~r 1-t t) '2-= - 42 + 41 = 2 k.:J, m.ol- 1

@ & ';1 -nL rlU b. Jw._ 3Df at' to.LL , o.lors .-& -fo..t.ot: c:k_ ùn\V'ef~Yl

..... ~ l L. "" A- O/> "' o, '} 1 1D 1, d, J ~ o. tl{ ""'vtrfi._ .

~n c:k rm.oJiere row- b ~o.~ c._t\)

Co (~J -t \\_O (~J ~2- (~) -t ~2..(~) lblAL

_.-\ GA2:: c:::::-

1

f..."L IV\o fY\.o ~

Q-f ~(A-L-) ~ol A-L) fl\o""C ll\o"(., \ ~0

\

~ l.tb ,-ess l,.t)f\S o.r-\le.l~

Prf\ == 'P,~., =- ~ ""C '"P = "C 1' = 0 35 èo..r ( P:::: Po=~ 6-) "'LL ~ cR.YI.o 2- 1

'\""1 'i'\ 1\'\o (.-i-L) \') =- A_-c. 'h =- 0 A 5" 6o..r ,-OiJ :::.. t"~o = ~~ 2-- r J

1

@~~ckfh:

J> 'ar~ fo. un. dJL 1-wsç

J.h (~J -+ 4_ 02- C~J ~ J1_oc5) 6~~

~ J{~ ~ !J; H0 {H2 01 ~J - o -o L1 ~{~ -=- - 2~2 /tz.T ~-'

( 3

~hu&~ do_ dJ : Co C~J -4- t Oz_ C<j) ~ ~ CCj) 6 1U01-

6rk~ = 6<f k0(ûJL1 J) - LJf te eco,~ - 0

~r\-\c4 ';:::_ - 3q4 -(-llO) = -281- KJ, mo\''

( ~ ~ ~(!~)

LA. ~~" ~~ ~bo.re. c~r--= 6~ ~ ~~lU{ \.5t~=-o) . ~ o. dtmc.. b\..\= o , l,,.t, ~r G) -1> feo..clim ',&o~ ~ c:IQ:~ <6w\lt)J\-r-- ...ut\. rumu'\ O'"j @ _, è~JruAt alu -rM-~

ck_ ~ dn_ réo.ciiDr\ . 6\t.= 0 ~ 6~"+ ô\\2..

&.\se:. 6~.:: $3 6r \\ o~ + ~ 4 6 r \-\a-+

D. .i~ j.MW :. a o.~ e_ e.) . c~ rL>.A&mM 'DW" mo ~) fY\ co -=- 0

,22 ~ 8e..u.ls Co .fr ~ su.b'1S&:At lo c.cr-m.'ov..rtiol\ ·

IY\ ÎO - o 11.J1 tn.o -.. 1 C, .. ~ i 1 o z.-- ' ...~-~ ~ oJtor\ir IY\o = l'f\1-\ -t - m Co

M l-t2- -=- o , o 1.. ('1\.o 11 2.- z. z.. 2--

mN'l.-- =- o, bb ll\o IY\.0 '2.. "":: o, ~2 11'\o ~ )

Cet ~ ~t ~ro~ F J'w ) c.t 9LÙ-~ ~N2 ==- 4'1\o!L o..u. f'tvt.a, ~ re: o.t;W:;"'k~ .

trY\ ~ 6 \-\1'\ ==- if\ ~2. 6 r ~ 03 + Il) Co 6 ( ~r==-4 ,f reJ br\ t

J.l- LU\2. :J[eo~ s,: (UJ2,3) + ('llN,_t ~~J Cp~ (t-f,,~ + 'tl~ cp: :ilz0, 5)

+ "'-eo q,., (CD,_, j) J dT /'~ ~ 1\ivw\D:ri~u.m•".f- 1 "-p~ gj"'f'~ F /llo {o>s-brlrolrt) oo.J,1c.5~ 0 = o1o1. )C (-2-i"Z...IDJ + o

12.1.x (-2"84-.-10 3

)

+j[/o,-'IA+ o,n) ( lf4- o, o2 T) + ( o1 bb+o1 ~8) (u + 0 . ooH) + o1ol (30+o1oi~T~f J -3 2.

0~ -~1).,P + 4(.12.-1 -AAO "If 1 'f ~ ~'7.:)0 1<.- l

1

CA.{ tt ŒD w 0 2-

c.o2- t\2-

f:1_ Mo,., 0 t'J'\.o2- 0 0 1 1

Cl..~IC\~ - s, +3, - "S, +3.$, F~\) -o.. \/Q.t\œVV\QA. \-

pos-Q-> - - $z.. - -s2- -t- 1" 2... + Sz..

'0\~ 1'1\o,"' - S 1 3,-5~ I'J\4J, '2.- 5,-]z.. s2- 3>5, + 32-

0 la. 1~sÎ tJ1'- t~ dL À. -eAt L.. '9-.cliv\:6~ du_ ~~ ~

Q~ C\~L

·-----------(\Co ~J.I 0 ::1.

k~==

\oiAL C:>A~

IY\o -1 -\- 1'1\o '2.. 1 1

-tz..S,

-

rn c-t -+rn~ *2.. s,

(;) O'f\. se cb.ru... l'l\ f(\_ = os ~ ~ "5z. = o 5 ~ \::.; '""""'L, ., ' 1

~ o. fl'\92.. ~ 4 ~ y k~ = 2,204. '

Oh .eA. d.tduJ: S -:t. 21

'2..04 = o1 ') ( 3 _3,-+ o .5)

( s 1 - o. 5) ( 4-5, -1).5) "S ,=-v,~'" ~

L-' -"1~ ck_ k ~ 'l'v<:>W> c:!mvu_ alors +'toi: so-ckMr 'l"" 11\o,• = -1 ~ "Ptd:: = f" x./ ;t,3ob x (--1- o, ~b) ( 4 -oc 116 -o,s-) (4 -t-1+ 2x o,"tlfo)"l

~ {611/l-o.S )( 3)C o.1-'lh t-o.s-) 3

?toc= 3 121 bor

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~\ == o;~(a ~ ~'2- = o,s rrr.J..

1

cQ. V(s) +- ;_ 02- C3) ~ Yz.Os (s)

la. --\nw~~ ~ jcùl: Ci ~ Ü6Y\DM ( Qv :::: b. Ù) ..Q1- .1.e_ récxët.a.w-

~\- f1'o.JJ.e~+- Âili 1 ~hP+-~ -thv-m.L9~ ( 6<v=o). ~o.~ bU-:::.C

u 'é"trut .).>J'Q ~éttol\ d \ ~ 1 DY' tolcu.k. sa. ~ ~" tru-r k ~ ~\.LQ. J~ Ous\il ~ 01\ v-eu.!:- 0 -loo~ -l~ J:so~ ~ -~ t

@ ~W>eAf~~~ <kk. . 1>~-0::::6.. U ==- LVÂ+ .6Uz_

0-.\.lec. 0 bU"= Sf 6rU o

Caf ~~o (èfl) = Uh\0 (En>) -t eT ..tt }{.: ( s) = u..: (.5) ~ 1-{ o = 4 r: (V205 ,~) - ~J.\~ (v, s) -~ ~; (~jJ L\ \-\o~ t\U 0

- 5 R\

® ~~(\ du ~g~ V\ cf~ ~ ~cfu{\ ·. 2-

bl'\ ~~ tY\v::: o,'2 ~ ~ IY\~= Q. ~

&b : iY{s) + Î 02- r~) ~ v2--V5 Cs)

El o 12. o,4 \

~v (\2-2_5f o, ~-; sf -sr 5+ )MX Cv')-=- o,1 ~ St- 'mô.x C~) ~ ~ ~~No~

k. ~M..ditrm ~r- &_

récc:ti,f ~~ 5f- co11 m.J

6. ~-b Jno.(Q, du_ ~~w

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~(Àlt~ T-t ~~

0-::: LW A + .D U~ -t .DUz_~

0::::: o11. x ( -AZ.Ltt\}to~ ~:} 1oS"x (Tf- 30J) + ~'3b(i.f -3oo)

d 1 eü., l.f-:::-- 44l \<,

~ q~ J:oto.k- di_ éfZ- ~e. _;,o\- (f\~l~= .1. ~ r-pj V,;_==- M_i RT~

tR 1~ jpto..~ ck. ff>-~ ~ f2<J ll\8'-~~s =- -1,.:rs ~ 'Y_ç. Vt =- "\f R Tt- ~vec '1: \1~

1_ = IY\fTf 1'~ ~ T~

'Pr ::: ~ . 'Y\.f Tf-1 .tnL Tt:

AN: l>:f = 2 x .-t,TÇ x ~"' =- ~ ~ bc:>.r 2..J< ~

1

( &.erciœ ~ 00 t:lo..OOroJio~ d '..u.n éurw>t- j

(.A) 3 Co._CQ3 (s) + s,·C1_(s} -;> &_~S,~Q5 (s) + 3C4_ (J J 0) 1) 1 CÂprës lA Us\, ck ~

6rH~ =36f Ho (CDz._) t Aft\ 0 (<Ât3Sï05)- Q6JH0 (Co..CD~ -~H0

(Ç.~)

L',( 1-\:~ 3x (-3"13) + (-2"1:>o) -3.x (-12.0b') -(-"\ID} 6.r\-\=-+41g kJ.~-'

,1\

@ Lo.. ~CUî rtv\D.~t) ~ .)s-obe>.re...1

-& ~re.~ fr\.n~ ~ &Ç> ~ D H

Or 61-\ = _5f Dr fi~ ~ .Sf .-e.~+ ..l'o..~~ :Jt~ ck il>.~ ~ 0

Ici "" ~ -h-0\1'\" _fnruv ""' "' A-~ ck ~ 0

L'(À~~tY\Qrk fn.a.\ .eo~ i:d ~W2. !T\o(eo.,~) -~sf-=-o ~ !ç = f'r\o (Cu..Ws) _ rrr-. (_ Co..CDaJ

3 - 3 tv\ ceo..w3)

(;)? = I'M (Co... CO~) 6r 1{ o

~M (Co..CO~ "

3 3 ~ ~ = -10 . ~~~3."1D -= ~,'f.AC> J

3. ( 4 ()+tl 2 + 3.,d6) .1\0 ~

&~= 1114 G-J ::= A, 4 ./ID

6 P.T

0 0 .f:I. l <'hWlfu) ·~--------------------------------~------

.[F 0 0

•

Y, ; '~~H.,o q,: ( ~<o) T ""CD, q,: (W._) + '11N,_ Cp: ( N~.-) Tl(l o. le m.vd-

1 ~.,A-l{"._ 1 ~ 0}2-- Cf~ (Hz_o) T ~ Cf~ (W!-) + "&f.._ Cf: (N,_ )Jclj-Ta)

T\ ~ ~03 . t1D 3

lJ = ~t:-1 g + = c2~ ~D k-Jx 33 b + 31.1-r '&x2~ l ----

' 1 J

@ & mmer.OJ\t- ()>_ rmQ tMae o J1?rw k, lSY\ ~e ..)W2. .é~ ~~

( ~ati.v-e.. (§>{ ~ o.- .11 ~&\ew) ~~ Q>7n(T-1- lf ) f='UI ~UQ_ ~ cie m\i~ ~ ·

!.o._ mact.oA ((1) rnf02~ JUL cx.~rt. ~~\..uL D><t. ~ s, .6,H~ '1-1 jcud- clt5nc tbruL.r tYl ~ ~ Ci\ a_vec_ o

0. -.L.. ""' D 0 <âsU- /\<\ = ~ ' Dr H , \._;)(1\ \ • 1\~()'\'1 = I l\_

Ca-b ~ JV\e IYY\D..1J)e_ (Yn dL cm:é::~ :

IYY\ = M ( 0-4-) . . 1YY1 (Co-CD~ 1:,. r K ~ 3MCOt~) [~q,: [llz_b) ~ c; (Cb~) +'&f: (N~)J (T~ -l;) , L

f\Jurnérî 9w.~ 3

f'n\ :::. 02_ -t 4). _--10 __ 3~ lfO-t-12-t 3)C1b)

1