Energias Livres Flashcards

1
Q

∆G = (normal)

A

∆H - T ∆S

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2
Q

∆G<0

A

processo espontâneo (irrev)

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3
Q

∆G>0

A

processo não espontâneo

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4
Q

∆G=0

A

processo de equilíbrio (rev)

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5
Q

∆G é trabalho útil (não expansivo)

A

processo espontâneo (∆G<0 e Wu>0)
pressão constante
temperatura constante

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6
Q

∆G sólido e líquido puro

A

∆G= V•∆P

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7
Q

∆G gases ideais

A

-W

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8
Q

W(P)

A

nRTln(P/Po)

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9
Q

W(V)

A

nRTln(V/Vo)

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10
Q

μ= (G)

A

μ=G/n

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11
Q

μ=(μo)

A

μo + RTlna

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12
Q

a (soluções ideais)

A

W/Wo

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13
Q

a (soluções não ideais)

A

γ • W/Wo

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14
Q

a (gases não ideais)

A

f•P/Po

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15
Q

f=

A

Φ • P

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16
Q

Φ = 1

A

gás ideal

17
Q

Φ < 1

A

gás não ideal com predomínio de forças atrativas

18
Q

Φ > 1

A

gás não ideal com predomínio de forças repulsivas

19
Q

∆A=

A

∆U -T ∆S = -T ∆Stot

20
Q

∆A<0

A

processo espontâneo (irrev)

21
Q

∆A>0

A

processo não espontâneo

22
Q

∆A=0

A

processo de equilíbrio(rev)

23
Q

∆A (sol e liq puros)

A

∆A=0

24
Q

∆A (gases ideais

A

∆A= ∆G

25
Q

unidade de medida ∆G

A

kJ/mol

26
Q

∆H varia com a temperatura

A

∆H2 = ∆H1 + ∆Cp • ∆T

27
Q

∆S varia com a temperatura

A

∆S2 = ∆S1 + ∆Cp • ln (T2/T1)

28
Q

Jaule=

A

1kg • m2/s2

29
Q

Pascal=

A

N/m2