Thermodynamics Fundamentals: Internal Energy and Enthalpy, Study notes of Chemistry

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THERMO DYNAMICS

Jhe lanch^ Acuna^ uhicl^ aleals^ uitleThestudy

doanat till^ asyting^ alaut^ te^ hat^ at^ luhick^ tea

Mot tellasylungaliout uindudualatons molules

deneasie erns and canep

systm and donding

Ausngundiasg

LeTehamge enlyoangy mithktu

endissgslut mat^ matttit^ us^ allid^ a

3. Ssstood aysisai

ate aayslran^ Qnd^ Atoe^ usiabla

ands

Whe p3tCes^ n^ hichpresae^ teaoind^ canstaat

dhahmsdlyaaaua luoiles

4ntinal'ngy

CAlralagt

R

W--2 (^) g03 nRb (^) loq wa (^) alwal W

ganceatat (&.3HTkna V

S4$K(tempexatnsl

cenatat (e.314 J/melk)

alus 500J^ heat^ anal^ das^ 40JGn

Linlsaal eeng

Ast5o0t

SU=AU 500-50 450

Att60422 00

dateanal 2O 60

Au=-Jo0Du= 50 tI

enhalby

U+ PV

VpAH

Jmlrnal

H,Ut PV (1)

Rlaianship letuw^ at^ e^ faclam^ at^ coaslant essLAe laad^ that^ ceslasat^ toluane

= AUt (Pv,- Pv)

AHPy= nRIU+ ((n,RT)-aRI)

AH =AUt^ (n,-^ n)RT

Conditions esadtn^ ic^ AH^ AU)

LL

sileee megatiie posliu

harnschenioal eguatioa

gaie

teat eualeede Qllsaled aasng

Aouompletly eacted

candituta olassaah^ ndea^ Atandad^ cendikass Cemluustion

the aaeuiicalquakiesa

eaidiskal Lnden côndtpd ceanuderaio

2nele

athathy yyduahiÝ CAtyH)

KIfpeagaa

leat

dulstamee

hat thefwttua addion edle delueaat does at

mpaaluse -acengiyhaag

coleulaltn

foLsing data.

C)+C2)

(u)- t3)

2

athay faanaiou

AHAH=-225RKT 329.^5 KJ^ Mel)

-98.5)+ 2(-2 85. &)]--90.3)

AH -4.8 KJ mel

m(2)

(3)

6x2)+ 3x(3)

2

8TO

34, t

6ct34, cçHe

faceaig data'

66 + 34,^ +5OS 2

A-343,5 KJmol

2

6-39 3-5)^ +8-285.8^ 3)^ 3267)

2

SH= - 22SR3KJmel

AH-3267KJnl

Bead nthalpy

heatmsithe asLeuasnallulisu naiatoniemaleeuls

londa

3-B H-Br y85+1Q 627 -72 K

C

• 36Mx

GI5F1652oMS

eeleasuoluhe mol

35 KT oe KI mel

L

ethee

--125 KJmel-)

C-C 347 C

30030o^ +^ 4H,O

C-H 6 b=O

NEN

-1662 KTMal

SNH =g- 389 q45. 36

S30= C=0+

:)

SirN-nv

As +ue (s) AS= -ue CN. S)

ichange alingtinpursle.

ituersill

ehangeahta uabsus atita doilng aiaat

As -coquikniua)

faanticulan aneatien

Ta Lnelling tuna)

Kolid at whngis ato apau attat paiula

-tenpnaane

Th Cleiing tf

Cii)-)

gibly

G = H- TSdaopy

ohayy

AS O2KJK mel hatinp

H3,

-AH -TAS

AS RdH tolle

L