Lucrul mecanic in TERMODINAMICA Flashcards

1
Q

la comprimare

A

lucrul mec cedat de sist este poziyiv

L=Fel
Le=-Pe
(Vf-Vi)
V=Vi-Vf => - ΔV=Vf-Vi

Le>0 => L=-Le

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2
Q

la dilatare

A

luc mec primit de sist este negativ

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3
Q

presiunea in timpul comprimarii/dilatarii

A

fiind cst => transf e izobara

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4
Q

Le - lucrul mec reversibil

A

la trans izobara cvasistatica si reversibila

Le = P(Vf-Vi)
L=P*ΔV

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