
09. TC3P1
Authored by Emmanuel Libberecht
Chemistry
University
Used 17+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans un diagramme binaire isobare liquide-vapeur, la courbe du haut est appelée :
solidus
liquidus
courbe de rosée
courbe d'ébullition
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la bonne relation pour la variance réelle dans un diagramme binaire isobare ?
v = C - r + 1 - φ
v = C + r - 1 + φ
v = C - r - 1 + φ
v = C + r + 1 - φ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle relation est toujours vérifiée ? (A et B sont les 2 composants d'un mélange binaire solide-liquide)
wL(A) + wS(A) = 1
wL(A) + xL(A) = 1
wL(A) + wL(B) = 1
wL(A) + wS(B) = 1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quand on refroidit un liquide binaire, la composition de la dernière bulle de vapeur se lit :
à l'intérieur du fuseau
sur la courbe de liquéfaction
sur la courbe d'ébullition
sur la courbe de rosée
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est la seule proposition erronée ?
Sur une courbe de refroidissement :
Chaque cassure a lieu à la température d'un événement particulier
Il y a une rupture de pente dès qu'il apparaît ou disparaît une phase
l'abscisse est en fractions molaires ou massiques
l'ordonnée est en températures
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