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2 - Facoltà di Medicina e Chirurgia

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ΔC = – Δn<br />

ΔV<br />

= – Δn<br />

S Δx<br />

Δn = ΔJ s S Δt = – ΔC S Δx<br />

D. SCANNICCHIO 2007<br />

ΔJ s<br />

Δx<br />

= – ΔC<br />

Δt<br />

D d2C(x,t) dx2 =<br />

II a LEGGE DI FICK<br />

dJ s<br />

dx<br />

dC(x,t)<br />

dt<br />

ΔJ s = J s2 – J s1 = Δn<br />

S Δt<br />

= – dC<br />

dt<br />

J s = – D dC<br />

dx<br />

C = C(x,t)<br />

24

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