PART 2 Flashcards

1
Q

Based on stoke’s law, this parameter has the greatest effect on sedimentation rate

A

Diameter of particle

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2
Q

The principle of _ adsorption is employed in a decolorizing solution

A

Solid-liquid

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3
Q

The adsorption of gases by a _ finds application in the removal of objectionable odors from rooms and food using charcoal

A

Solid

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4
Q

The degree of adsorption of a gas by a solid depends on the _

A

Chemical nature of the adsorbent
Adsorbate

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5
Q

The principle of adsorption is used when _ and _ are used in the treatment of acetaminophen poisoning

A

Activated charcoal
Acetylcysteine

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6
Q

Electric property of colloids

Difference in potential between the surface of the tightly bound layers and the electroneutral region of the dispersion

A

Zeta-potential/Electrokinetic potential

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7
Q

Electric property of colloids

Difference between the potential of the actual surface and the electroneutral region of the surface.

A

Nernst potential/Electrodynamic potential

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8
Q

Shear thickening system

A

Dilatant

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9
Q

Shear thinning system

A

Pseudoplastic

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10
Q

Bingham body

A

Plastic

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11
Q

Substances that exhibit yield value

A

Plastic/Bingham bodies

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12
Q

The yield value must overcome in order for the system to flow

A

Plastic/Bingham bodies

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13
Q

Flocculated particles in suspension, ointment, toothpaste, cream, cerate, cataplasm, butter, margarine drilling mud, slumes, blood,

A

Plastic/Bingham bodies

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14
Q

Decrease viscosity, Increase rate of shear

A

Pseudoplastic/Shear thinning system

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15
Q

Liquid dispersions of gums-mucilage, ketchup

A

Pseudoplastic/Shear thinning system

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16
Q

Increase Viscosity with Increasing Rate of shear

A

Dilatant/Shear thickening system

17
Q

Ex: Paint, whipped cream, corn starch, clay slurries

A

Dilatant/Shear thickening system

18
Q

Classification of complexes

A

Metal
Organic
Inclusion/Occlusion

19
Q

Complexation between a drug and a complexing agent influence

A

Drug absorption
Bioavailability

20
Q

Caffeine forms complexes with _ that are less soluble than caffeine alone, providing caffeine in a form that masks its normally bitter taste

A

Organic acids only

21
Q

Instrument for newtonian fluids only

A

Falling sphere
Ostwald
Ubbehold

22
Q

Complete wetting

A

0°C

23
Q

Insignificant wetting

A

180°

24
Q

Poor wetting

A

95°

25
Q

Good wetting

A

15°