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# Ficks laws of diffusion Quiz | Diffusion Theory: Ficks 1st Law

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A
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Iodine
Glucose
Oxygen
Starch

## What is diffusion?

The movement of molecules through a semi-permeable membrane from an area of lower concentration to an area of higher c
The movement of molecules through a semi-permeable membrane from an area of higher concentration to an area of lower con
The movement of molecules across a semi-permeable membrane until there are equal amounts on each side of the membrane
Molecules desire to spread as far from a membrane as possible

M L T -2
L 2 T -1
L T -1
M L -2 T

84
74
64
54

0.4880 cm2/s
0.3880 cm2/s
0.2880 cm2/s
0.1880 cm2/s

0.23
0.22
0.21
0.24

## What is the molecular volume of air at normal boiling point?

29.89 cm3/gm mole
39.89 cm3/gm mole
49.89 cm3/gm mole
59.89 cm3/gm mole

31
53
29
39

m2
s
m2 s
m2/s

## Fick’s law is given by the formula

N b = – D b c d C b/d x
N b = – 2 D b c d C b/d x
N b = – 3 D b c d C b/d x
N b = – 4 D b c d C b/d x