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The following data were obtained for the extent of adsorption, s, of acetone on charcoal from an aqueous solution of molar concentration, c, at 18°C.
c/(mmol dm-3)
15.0
23.0
42.0
84.0
165
390
800
s/(mmol acetone/g charcoal)
0.60
0.75
1.05
1.50
2.15
3.50
5.10
Which isotherm fits this data best, Langmuir, Freundlich, or Temkin?
A 7.3 m diameter solid sphere can be rotated about an axis through its center by a torque of 10.8 m*N which accelerates it uniformly from rest through a total of 150 revolutions in 16.0s
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two objects are identical and small enough that their sizes can be ignored relative to the distance between them which
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