1er principe de la thermodynamique

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Equation du gaz parfait :
P.V = n.R.T
Pour qu' un gaz soit parfait, il ne doit pas avoir d'interaction entre les molécules, leur taille est négligeable comparée à la distance les séparant
énergie interne U = Ec micro + Epp micro
Premier principe de la thermodynamique
La variation d'énergie interne (delta U) d'un système au repos d'un état initial vers un état final est égal à la somme des transferts d'énergies sous forme de transfert thermique ou travail mécanique
dU i->f = W+Q
Le travail thermique Q, est positif lorsque le système étudié est réchauffé et est négatif lorsque le système étudié est refroidi
La variation d'énergie interne dans un système incompressible:
dU = m.c.dT soit dU =m.c.Tf-Ti

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1er principe de la thermodynamique

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2.3.2 Le Chatelier's Principle

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7.2.1 The Hardy-Weinberg Principle

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1.2.1 Principle of Conservation of Energy

8.3 Buoyant Force and Archimedes' Principle

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2.3.1 Core principles