facteurs qui influencent la vitesse Flashcards

1
Q

état physique

A

solide->liquide->gazeux->splution acqueuse

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2
Q

surface de contact

A

l’augmentation de la surface augement la vitesse

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3
Q

temperature

A

l’augmentation de la temp avec 10C augment la vitesse de 2 a 4 fois

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4
Q

loi d’acction de masse

A

xA+yB->aC+bD
->V=k.cAxcB(кинетично уравнение)

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5
Q

k?

A

constante de vitesse,elle depend de la nature des reactifs,de la temp et de la pressure de catalisateur,mais ne depend pas de la consentration et de la pression

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6
Q

cA,cB?

A

concentration reactifs

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7
Q

x,y?

A

quantite de matiere(nombre de moles)

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8
Q

IMPORTANT!!!

A

Quand on exprime la V on ne prend pas compte la concentration des reactifs solides

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