Chap 15 Dilatation Flashcards

1
Q

Quelle est la formule D’une dilatation Linéaire

A

Lt=L0(1 +λ(T-T0))

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2
Q

Quelle est la formule d’une dilatation volumique

A

Vt=V0(1 +K(T-T0))

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3
Q

À quoi correspond le coefficient de dilatation volumique

A

K = 3*λ

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4
Q

Quelle est la formule d’une dilatation de gaz

A

V=V0(1 +a(T-T0))

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5
Q

Pourquoi utilise t-on à dilatation des liquides

A
  • pour le thermomètre à liquide

- pour des système d’extinction automatique type sprinkler

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6
Q

Quel est le coefficient de dilatation pour les gaz a pression constante

A

α = 1/273.15 = 3.66*10E-6 K

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7
Q

Donner la loi de Gay lussac

A

a pression constante V/T= V0/T0 ou T en Kelvin et V en m3

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8
Q

Donner la relation de Charles

A

à volume constant P/T= P0/T0 ou T en Kelvin et P en pascal

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9
Q

Donner de la loi de mariotte

A

a T° constante PV = P0V0 ou V en m3 et P en pascal

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