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Transformations > Binary solutions > Flashcards

Binary solutions Flashcards

1
Q

Gcomponents =

A

XaGa + XbGb

> molar free energy of bringing a and b together, but NOT MIXED

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2
Q

Gmix =

A

Hmix - TSmix

> mixing at atomic scale to form a solution

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3
Q

Definition of Hmix

A

change in bonding energy in the material

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4
Q

Gsoln =

A

Gcomponents + Gmix

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5
Q

Ideal solution assumptions

A

> Hmix = 0
Gmix = -TSmix = RT(XaLnXa + XblnXb)
Gmix is always (-)

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6
Q

Regular solution assumptions

A

> Hmix not 0
Hmix = ΩXaXb
Gmix = ΩXaXb + RT(XalnXa + XblnXb)

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Transformations (12 decks)

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