Adsorpsi Flashcards

1
Q

Adsorpsi adalah

A

melekatnya suatu senyawa pada permukaan senyawa lain

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2
Q

Adsorban adalah

A

bisa mengadsorpsi

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3
Q

Adsorbat

A

bahan yang teradsorpsi

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4
Q

Gaya yang timbul pada adsorpsi adalah

A

gaya fisika (van der waals/dipol-dipol) dan gaya kimia (ikatan H), Elektrostatis dan Koordinasi (ik. kovalen koordinasi ligan-ion logam)

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5
Q

Fisisorpsi akan melepas energi sebesar

A

10 kj/mol

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6
Q

Apakah energi pada fisisorpsi dapat memutus ikatan?

A

tidak karena sangat kecil

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7
Q

Kimisorpsi melepas energi sebesar

A

100 kJ/mol

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8
Q

ikata n yang terbentuk pada kimisorpsi adalah

A

hidrogen atau kovalen

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9
Q

Adsorpsi gas pada permukaan padatan dapat terjadi

A

perubahan gerak molekul 3D jadi 2D, Penurunan energi bebas pada keadaan setimbang (isoterm adsorpsi)

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10
Q

Asumsi pada isoterm Langmuir, Freundlich, BET

A

terbentuk monolayer, fisika, dan multimolekuler

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11
Q

Rumus persamaan Langmuir

A

P/V = P/Vm+ 1/aVm

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12
Q

Rumus persamaan Freundlich

A

V = k p^ 1/n

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13
Q

Persamaan Freunlich berlaku hanya pada

A

gas bertekanan rendah

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14
Q

Persamaan BET

A

P/V (P0-P) = 1/VmC + (C-1)P/VmCP0

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15
Q

Adsorpsi padatan dan larutan akan membentuk

A

monolayer

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16
Q

Jenis adsorban

A

polar dan nonpolar

17
Q

Rumus isoterm Langmuir ads larutan

A

X/m = k1c/1+k2C

18
Q

Rumus isoterm Freundlich ads larutan

A

X/M = kc ^1/n

19
Q

Reaksi pertukaran di dalam tanah terjadi secara

A

pertukaran kation dan anion