Page 36 - Sarah Shafa_e-Modul Koloid Berbasis PBL
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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
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 ) .
G e r a k a n a n t a r p a r t i k e l k o l o i d o l e h m o l e k u l m e d i u m
d i s p e r s i m e n y e b a b k a n p e r g e r a k a n p a r t i k e l s e c a r a a c a k .
P a r t i k e l
S o l
Sumber:
Essentials of Physical
Chemistry
M o l e k u l
I l u s t r a s i d i b a w a h i n i m e n u n j u k k a n b a g a i m a n a g e r a k
B r o w n m e n g h i l a n g d a l a m s u s p e n s i k a s a r .
Sumber:
Essentials of Physical
Chemistry
P a r t i k e l P a r t i k e l
S o l S u s p e n s i K a s a r
23