dr r d π = 8 A γ π = dr r dw 8
dr r d π = 8 A γ π = dr r dw 8
dr r d π = 8 A γ π = dr r dw 8
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Spandimento tra due liquidi<br />
T=cost n=cost<br />
p=cost A tot= cost<br />
G<br />
G<br />
G<br />
dG dA<br />
A dA<br />
AB dA<br />
A A A AB A ⎟<br />
B<br />
⎟<br />
⎛ ∂ ⎞ ⎛ ∂ ⎞ ⎛ ∂ ⎞<br />
= ⎜⎜<br />
⎟⎟ + ⎜⎜<br />
⎟⎟ + ⎜⎜<br />
⎝ ∂ ⎠ ⎝ ∂ ⎠ ⎝ ∂ ⎠<br />
d A = − d A = d A<br />
B<br />
A<br />
A<br />
A<br />
B<br />
AB<br />
dG = −<strong>γ</strong><br />
dA<br />
+ <strong>γ</strong> dA<br />
+ <strong>γ</strong> dA<br />
−<br />
⎛<br />
⎜⎜<br />
⎝<br />
B /<br />
∂G<br />
∂A<br />
A<br />
B<br />
⎞<br />
⎟⎟<br />
⎠<br />
Area<br />
A<br />
Tot.<br />
B<br />
=<br />
AB<br />
S<br />
S = <strong>γ</strong> − <strong>γ</strong> − <strong>γ</strong><br />
S = w −<br />
B / A<br />
AB<br />
Ad<br />
w<br />
B / A<br />
BB<br />
Co<br />
AB<br />
B<br />
B<br />
B<br />
B<br />
B<br />
68