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Colle n°2 Pharmacie QCM 15


Maheva
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il y a 27 minutes, TartiFlemme a dit :

@Maheva salut!

 si on a T1/2, et la concentration initiale est 100% (soit 1) donc à partir de là tu peux utiliser la formule t1/2 = [A0]/2ak
ça donne :

  Masquer le contenu

 

donc on a k = 1/200 * 2 = 2.5 10-3

 

 

 

 

bonne aprem!

Mais ce calcul pour trouver T1/2, c'est pour l'ordre global 0. Or ici, c'est un ordre global de 1. 

 

il y a 30 minutes, TartiFlemme a dit :

@Maheva salut!

 si on a T1/2, et la concentration initiale est 100% (soit 1) donc à partir de là tu peux utiliser la formule t1/2 = [A0]/2ak
ça donne :

  Révéler le contenu masqué

 

donc on a k = 1/200 * 2 = 2.5 10-3

 

 

 

 

bonne aprem!

Ahhh nan c'est bon j'ai compris ! Merci !

 

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