Page 37 - Sarah Shafa F_e-Modul Koloid Berbasis PBL

K e g i a t a n B e l a j a r 2
K e g i a t a n B e l a j a r 2

U k u r a n p a r t i k e l k o l o i d l e b i h k e c i l d a r i p a d a s u s p e n s i .

H a l i n i l a h y a n g m e n y e b a b k a n t e r j a d i n y a t u m b u k a n

a n t a r p a r t i k e l k o l o i d d a l a m m e d i u m p e n d i s p e r s i .

G e r a k a n a c a k ( z i g - z a g ) t e r s e b u t y a n g d i n a m a k a n G e r a k

B r o w n .

P a r t i k e l
S o l

M o l e k u l

Sumber:
Essentials of Physical Chemistry

G e r a k B r o w n m e r u p a k a n

f a k t o r p e n y e b a b s t a b i l n y a

p a r t i k e l k o l o i d d a l a m
m e d i u m p e n d i s p e r s i n y a .

P a r t i k e l k o l o i d t e r h i n d a r

d a r i p e n g e n d a p a n k a r e n a

a d a n y a g a y a g r a v i t a s i .

D a l a m k e h i d u p a n s e h a r i -

h a r i , g e r a k B r o w n d i j u m p a i

p a d a p e r i s t i w a b e r i k u t :

G e r a k s e r b u k s a r i p a d a

a i r y a n g t e n a n g .

G e r a k p a r t i k e l t i n t a d i

a i r ( t e r u t a m a a i r

Sumber: Surfguppy dan Gettyimages
d i n g i n ) .

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