alesonchap7.py

Created by klfraimbow

Created on January 26, 2023

585 Bytes

leçon chap 7


0S variation entropie 
0Se entropie echangee
0qpencher entropie cree 

2nd principe thermodynamique
la transfo s effectue avec une
aug globale de l entropie
OS(Syst)+0S(Mext)= 0qpencher>/0


T constant 
0S1-2 = Q12/Tsyst
J.K     J     K
T non constant
OS1-2 = m*c*ln(T2/T1)
      kg J.kg.K
      
0Se= -0S1-2(Mext)
0Se= Q/Text = m*c*00/Text

0S(Systeme)=0Se + 0qpencher

0S(Mext)= Q/Text = -m*ceau*(T2-T1)/Text
irreversible(stricte) 
0qpencher >O
sinon 0qpencher >/ 0
reversible = 0

Sa= sa*m 
0S = Sb-Sa
Sb= 0S+Sa

Sc=Sa car aidabatqiue reversible 
-> isentropique

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