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Solutions, Temp & Enthalpy Review Flashcards | StudBud
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Solutions, Temp & Enthalpy Review
Solutions, Temp & Enthalpy Review
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1
Identify 'B' in the phase change diagram.
liquid phase
gas phase
melting point
boiling point
2
Hot to touch
endothermic
exothermic
3
How will increasing the pressure above a solution affect the solubility of a gas?
it will decrease the solubility
it will increase the solubility
it will stay the same
4
In thermal pollution, what happens to the oxygen gas dissolved in the cooler pond or lake water?
more oxygen is added as solubility increases
there is less oxygen as solubility decreases
5
Dissolved particles of a solution
solvent
solute
6
Enthalpy is another name for
entropy
dilution
temperature
heat
7
A direct phase change from solid to gas
deposition
vaporization
sublimation
melting
8
A solution with a large amount of solute.
concentrated
dilute
unsaturated
saturated
9
Which of the following is TRUE about the kinetic theory of gases?
the particles in a gas move independently of each other
none of the above are true
the particles in a gas move slowly
the particles in a gas are close together
10
Identify 'E' in the phase change diagram.
boiling point
gas phase
melting point
liquid phase
11
A solution with the maximum amount of solute that can be dissolved at a given temperature.
dilute
supersaturated
saturated
unsaturated
12
Which of the following is NOT a way to make a substance dissolve faster?
decrease temperature
decrease particle size
agitation
all of these will work
13
The theoretical point at which all molecular motions stops is known as __________ zero.
sub
total
absolute
temp
14
Dissolving medium of a solution
solvent
solute
15
A solution that contains only a small amount of solute
concentrated
unsaturated
supersaturated
dilute
16
Which do you add to the container first when making an acid solution?
acid
either one
water
17
A positive change in enthalpy
endothermic
exothermic
18
Which phase of water has the greatest average kinetic energy?
vapor (steam)
ice
liquid
19
Absolute zero is at 0 Kelvin. What would this be in Celsius?
-459
0
273
-273
20
After diluting a solution the number of moles of solute stays the same.
False
True
