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Vorlesungsmitschrift PC1 VL13

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Mitschrift (Mitschrift)

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Uploaded on
January 6, 2021
Number of pages
5
Written in
2020/2021
Type
Class notes
Professor(s)
Stefan krause
Contains
13

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nachdem 2 HS
gilt ASges 70 14 4
umstellenergibt
IE 1,8 III Effi
einsetzenin Gleichung für Wirkungsgrad
2 1
1 1
FI Reamot
Damit ist die Aussageder alternativenFormulierungbestätigt DERcannot
Es ist unmöglich miteinerperiodischarbeitendenMaschine WärmevollständiginArbeit
umzuwandeln Perpetuummobile 2 Art



änderung bei Phasenübergängen
Entropie

Bei Schmelz s l und Verdampfungsprozessen l g wird die Entropiezunehmen
da sichMaterie verteilt stärkerbewegt ungeordneter wird
Verdampfungsentropie
Bsp KochtopfmitWasser PhasensindimGleichgewicht molareverdampfungsenthalpie
isobar Druckkonstant 1 µ kataim bestimmt
AH AQ AQrev 5 de tvHm 40,7k Imd
für 1 mal Wasserbei 100 C 1bar 15 343,131 1093
Asm 109K mol
weitereBeispielefürVerdampfungsentropie
AHMET TsieaeEKJ smfn.no
Br 29,45 332,4 88,6 Troutonische Regel
Benzoll30,8 353,2 87,2 Die Verdampfungsenthalpie istfür
vieleFlüssigkeitengleichgroß ca86M
Uz 20,4 239,0 85,38
Ausnahme Flüssigkeitenmit HBrückenbindungen
Cyclohexan 30,1 353,15 85,1 Dieseführenzueinergrößeren
OrdnunginderflüssigenPhasediebei
H2S 18,7 212,8 87,9 Verdampfungverlorengehtdaherist
dieEntropie
änderunggrößer
NHg 23,35 239,7 97,4
H2O 40,7 373,15 109,1

Schmelzentropie

1Ssm 1 Hsm
analog i SM Schmelzen
Tsm

,
R101,05
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