
06. TC2P2
Authored by Emmanuel Libberecht
Chemistry
University
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quand la variation d'enthalpie libre de réaction d'une transformation est positive :
la transformation n'évolue pas
la transformation évolue dans le sens direct
la transformation évolue dans le sens indirect
on ne peut rien dire
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dans le quotient de réaction Qr,
les pressions doivent être en Bars
les températures doivent être en °C
l'activité de l'eau vaut toujours 1
les réactifs sont au numérateur
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quelle est l'expression correcte ?
ΔrG = ΔrG° + RT.ln Qr
ΔrG = ΔrG° + RT.ln K
ΔrG = ΔrG° - RT.ln Qr
ΔrG = ΔrG° + RT.log Qr
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
L'expression de ΔrG fait intervenir :
potentiels chimiques standard & coefficients stœchiométriques
potentiels chimiques standard & quantités de matière
potentiels chimiques & coefficients stœchiométriques
potentiels chimiques & quantités de matière
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quand la variation d'enthalpie libre standard de réaction d'une transformation est négative :
la transformation n'évolue pas
la transformation évolue dans le sens direct
la transformation évolue dans le sens indirect
on ne peut rien dire
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