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4e GR 2021 Const Mat

4e contitution mat

Etat solide (comportement des molécules ?) Molécules sont : -> liées -> au contact -> immobiles (Etat physique ?)
Etat liquide (comportement des molécules ?) Molécules sont : -> peu liées -> au contact -> mobiles (Etat physique ?)
Etat gazeux (comportement des molécules ?) Molécules sont : -> non liées -> espacées -> très agitées (Etat physique ?)
Taille de la molécule Inférieure au milliardième de mètre (<10-9m) (taille de ?)
Corps pur (au niveau microscopique) Toutes les molécules sont parfaitement identiques (forme, taille, masse) (c'est un ?)
Mélange (au niveau microscopique) il y a au moins 2 types différents de molécules. (c'est un ?)
Augmentation de la température (effet au niveau microscopique) Les molécules sont de plus en plus agitées et mobiles (à cause de ?)
Compressible (pourquoi ?) les molécules sont espacées
Pas de forme propre (pourquoi ?) les molécules sont mobiles
Expansible Les molécules sont non liées
Created by: eraxit



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