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KMT, Gas Laws, Solutions

Total questions: 90

Worksheet time: 2hrs 49mins

Name
Class
Date
1.
In order to convert to Kelvin, you add ______ to the Celsius measurement.
a)
372
b)
273
c)
237
d)
732
2.
What is 50 C in Kelvin?
a)
223
b)
323
c)
100
d)
50
3.
100 degrees Celsius is equal to _______ Kelvin. 
a)
0 K
b)
273 K
c)
173 K
d)
373 K
4.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
5.
Which of the following would increase the (gas) pressure of a system?
a)
Increase the Temperature
b)
Pump in more gas
c)
Decrease the volume
d)
All of these
6.
The following graph shows ____ relationship. 
a)
Direct
b)
Inverse
7.
Boyle's law :  The pressure and volume of a gas show a _____ relationship. 
a)
Inverse 
b)
Direct 
8.
In the ideal gas law, which variable represents the gas constant?
a)
n
b)
R
c)
T
d)
V
9.
You have a gas that has a pressure of 2 ATM and a volume of 10L.  What would be the new volume if the pressure was changed to 1 ATM?
a)
5 L
b)
20 L
c)
It would stay at 10L
d)
1 L
10.
A sample of gas with a volume of 30.0 mL at 25.0oC is heated to 50.0oC.  What is the new volume of the gas?
a)
60.0 mL
b)
15.0 mL
c)
27.5 mL
d)
32.5 mL
11.
Determine the Kelvin temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure. 
a)
0 K 
b)
107 K 
c)
207 K 
d)
307 K 
12.
Three gases, Ar, N2 and H2 are mixed in a sealed container. Ar has a pressure of 255 torr, N2 has a pressure of 228torr and H2 has pressure of 752torr. What is the total pressure in the container?
a)
483torr
b)
270torr
c)
1235torr
13.
Determine the number of moles in a container of gas at STP with a volume of 99.2 L. 
a)
2222.08 moles
b)
4.43 moles
c)
22.4 moles 
d)
76.8 moles
14.
Determine the initial temperature of a random gas when the initial volume is 2.2 L and it is cooled to 88K with a volume of 0.85 L. 
a)
0.029 K
b)
0.021 K
c)
227.76 K
d)
34 K
15.
What is a substance that is dissolved in another substance? 
a)
solution
b)
solute
c)
solvent
d)
compound
16.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
17.
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

a)
stir the powder in the liquid
b)
freeze the mixture
c)
add more powder to the liquid
d)
store the mixture in a dark place
18.
air is a 
a)
compound
b)
element
c)
heterogeneous mixture
d)
solution
19.
Another name for a homogeneous mixture is 
a)
an element.
b)
a solution.
c)
a compound.
20.
Kool-Aid - Powder, sugar, and water
Identify the solvent 
a)
water
b)
powder
c)
sugar
d)
powder and sugar
21.
When Koolaid mix is light colored and tastes watery it is a _______ solution.
a)
saturated 
b)
diluted
22.
When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.
a)
concentrated 
b)
Diluted
23.
To make a solute dissolve more quickly i n a solvent which would you do?
a)
Put it in cold water and stir it
b)
Put it in warm water and stir it
24.
The concentration of a mixture can be increased in which of the following ways?
a)
Heating the mixture
b)
Adding more water “solvent”
c)
Adding more powder “solute”
d)
Stirring the mixture
25.
When a certain amount of solvent cannot hold any more solute it is called a ________ solution.
a)
Diluted
b)
Saturated
26.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
27.
Which solute is the most soluble at 10 ⁰C?
a)
KI
b)
KClO3
c)
NH4Cl
d)
NH3
28.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
29.
How does a solution become supersaturated?
a)
dissolve lots of solvent in it.
b)
dissolve a little solute in it. 
c)
dissolve more solute than you should be able to. 
d)
dissolve a super amount of solvent in it. 
30.
When 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
31.
When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
32.

Which of the following actions will NOT

increase the rate of dissolution

(dissolving)?

a)

Stirring the solution

b)

Decreasing the temperature

c)

Increasing the surface area of the

solute

d)

Increasing the temperature

33.

You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:

a)

saturated

b)

unsaturated

c)

concentrated

d)

warm

34.

How do you know when you have a saturated solution?

a)

You don't see anymore material in the solution. It has dissolved.

b)

The material dissolves and no more will dissolve because you see it collect at the bottom.

c)

The solution is bubbling and cloudy.

d)

The solution is clear and there is nothing at the bottom.

35.
What is it about the water molecule that makes it a great solvent?
a)
water demonstrates polarity; a partial charge on each side of the molecule
b)
due to its molecular formula
c)
it has a liner molecular shape
d)
due to it's non-polar molecular structure
36.
What is the correct formula to solve for the Molarity of a solution that has .4 moles of HCl in 9.5 L of solution?
a)
M = 9.5 L / .4 mol
b)
M1V1=M2V2
c)
M = .4 mol / 9.5 L
d)
none of the other choices
37.
A sample of 0.0255 mol potassium hydroxide, KOH, was dissolved in water to yield 10.0 mL of
solution.  Which amount would you need to change to solve for molarity?
a)
change .0255 moles to grams
b)
change 10 mL to L
c)
change both values to grams and L
d)
leave it as it is
38.
A questions asks, "what volume of 0.125 M KMnO4 is required to yield 0.180 mol of potassium permanganate,
KMnO4?"  What is the correct formula set up to solve for this problem?
a)
.125 M = .180 mol / L
b)
M1 V1 = M2 V2
c)
.125 M = L / .180 mol
d)
none of the choices listed
39.
Which of the following would result in being able to dissolve a greater amount of gas in a
solution?
a)
Heat the gas and solution
b)
Decrease the pressure of the solution
c)
Make the gas an electrolyte
d)
Cool the gas and solution
40.
90 grams of sodium nitrate (NaNO3) are put into 100 grams of water and stirred. The final
mixture has a temperature of 20°C. About how many grams of the sodium nitrate dissolved?
a)
23
b)
73
c)
80
d)
88
41.
Students are asked to make statements about the solubility graph above. Which student does
the best job of communicating the general features of the graph?
a)
Most salts require 100 grams of water in order to dissolve completely.
b)
Table salt has the average solubility of all salts.
c)
The solubility of most salts increases with increasing temperature.
d)
Most curves show a decreasing slope as the temperature rises.
42.
Which of the following would decrease the rate of solution when dissolving a solid in water?
a)
Raise the temperature of the solution
b)
Crush the solid before mixing
c)
Stir the solution after mixing
d)
Use a single cube of solid
43.
The speed of the molecules determines the _____.
a)
volume
b)
density
c)
pressure
d)
temperature
44.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
45.
What would cause a decrease in particle movement?
a)
decrease atoms
b)
increase in space between atoms
c)
decrease in temperature
d)
increase in mass
46.
Which has a greater distance between particles?
a)
gas
b)
Liquid
47.
Which phase has the highest kinetic energy? 
a)
solid
b)
liquid 
c)
gas
d)
matter
48.
What does this picture represent? 
a)
solid
b)
liquid 
c)
gas
d)
plasma
49.
What does this picture represent?
a)
solid
b)
liquid
c)
gas
d)
plasma
50.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
51.
Molecular motion _________ when temperature is increased.
a)
Increases
b)
Decreases
52.

These properties describe a ___.

a)

solid

b)

liquid

c)

gas

53.

These properties describe a ___.

a)

solid

b)

liquid

c)

gas

54.

These properties describe a ___.

a)

solid

b)

liquid

c)

gas

55.

The force of attraction between molecules is ___.

a)

intermolecular forces

b)

bridge forces

c)

chemical bonds

56.

Which of the following is not true about the volume of a gas?

a)

Most of the volume is empty space.

b)

The volume is occupied by particles in continuous, rapid, random motion.

c)

The volume is about 10 times greater than that occupied by an equal number of particles in the liquid or solid state.

d)

Generally, the volume can be easily changed

57.

A hypothetical gas that perfectly fits all the assumptions of the kinetic molecular theory is known as

a)

real gas

b)

ideal gas

c)

imaginary gas

d)

perfect gas

58.

When any kind of gas such, as nitrogen or carbon dioxide, is heated, it

a)

sublimates.

b)

evaporates

c)

explodes

d)

expands

59.
At what temperature do nitrogen molecules move fastest?
a)
350 K
b)
300 K
c)
250 K
d)
200 K
60.

Which particles of matter in this phase easily diffuse?

a)

solids

b)

liquids

c)

gases

61.

Gas pressure is caused by

a)

gas molecules colliding with surfaces

b)

gas molecules hitting other gas molecule

c)

gas molecules condensing to a liquid

d)

barometers

62.

Which of the following correctly describes the figure?

a)

Flask 1 contains the most molecules

b)

Flask 3 contains the most molecules

c)

Flask 2 contains the most molecules

d)

Flask 4 contains the most molecules

63.

Which of the following correctly describes the figure?

a)

Flask 1 contains the least pressure

b)

Flask 3 contains the least pressure

c)

Flask 2 contains the least pressure

d)

Flask 4 contains the least pressure

64.

Which of the following is true?

a)

Since all flask have same amount of gas, flask 1 has the least pressure

b)

Since all flask have same amount of gas, flask 3 has the least pressure

c)

Since all flask have same amount of gas, flask 2 has the least pressure

d)

Since all flask have same amount of gas, flask 4 has the least pressure

65.

Which of the following is true about KMT?

a)

Gas particles are elastic and do not attract each other.

b)

Energy is not lost when gas particles collide with each other or with the walls of the container.

c)

The kinetic energy of gas is dependent on temperature

d)

All of the above.

66.

Which of the lines on the figure is the best representation of the relationship between the volume of a gas and its pressure, other factors remaining constant?

a)

a

b)

b

c)

c

d)

d

e)

e

67.

Matter is made up of particles that are constantly moving.

a)

True

b)

False

68.
Particles that make up a solid have the _____________ attraction toward each other. 
a)
strongest
b)
weakest
69.
Which process changes a gas to a solid?
a)
solidification
b)
deposition
c)
sublimation
d)
freezing
70.
What has to happen in order for a phase change to occur?
a)
take away heat
b)
add heat
c)
either add or take away heat
71.
When a liquid changes its phase and turns into a solid it is known as
a)
condensation.
b)
sublimation.
c)
vaporization.
d)
freezing.
72.
When a gas changes its phase and turns into a liquid it is known as
a)
condensation.
b)
sublimation.
c)
vaporization.
d)
freezing.
73.
True or false: melting and freezing occur at the same temperature!
a)
True
b)
False
c)
I don't know
74.
What state of matter is segment 5?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
75.
From 30 degrees to 55 degrees, what state of matter is the substance?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
76.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
sublimation
b)
condensation
c)
evaporation
77.
In which state does matter completely fill its closed container?
a)
Gas
b)
Liquid
c)
Solid
d)
Ice
78.
What happens when you heat a gas?
a)
It gains mass.
b)
It loses mass.
c)
It increases in volume.
d)
It decreases in volume.
79.

Which states of matter are fluid?

a)

gases and liquids

b)

liquids and solids

c)

gases only

d)

liquids only

80.

According to the Kinetic Molecular Theory a liquid's (SELECT ALL THAT APPLY)

a)

particles are held close together by intermolecular forces

b)

particles are in constant motion

c)

particles are vibrating in place and closely packed

d)

particles are not moving

81.
At a constant volume, the pressure increases.  What happens to the temperature?
a)
increases
b)
decreases
c)
stays the same
82.
At a constant pressure, the volume decreases.  What happens to the temperature?
a)
increases
b)
decreases
c)
stays the same
83.
At a constant temperature, the volume decreases.  What happens to the pressure?
a)
increases
b)
decreases
c)
stays the same
84.
Which container will have lower pressure?
a)
left
b)
right
c)
they both have the same pressure
85.
Gas molecules can easily be compressed  because ___________. 
a)
gas molecules are soft
b)
gas molecules are far apart
c)
gas molecules follow the shape of the container
86.

Which of the following is the most accurate description of the changes in energy that takes place when ice melts?

(think about phases changes)

a)

The ice absorbs energy and the process is exothermic.

b)

The ice releases energy and the process is exothermic.

c)

The ice releases energy and the process is endothermic.

d)

The ice absorbs energy and the process is endothermic.

87.

Which of following statements describe what happens to the gas molecules during this process of evaporation?

a)

The molecules remain as a gas but they speed up, and the amount of space between the molecules increases.

b)

The molecules slow down, and the attraction that exists between the molecules pulls the molecules close enough together to change them from a liquid to a gas

c)

The molecules remain as a gas but they slow down, and the attraction that exists between the molecules pulls the molecules closer together.

d)

The molecules speed up, and the amount of space between the molecules increases enough to change them from a liquid to a gas.

88.

Which states of matter are fluid?

a)

gases and liquids

b)

liquids and solids

c)

gases only

d)

liquids only

89.

The kinetic theory states

a)

Particles won't move if you don't apply energy to it.

b)

Particles only move in liquids and gases.

c)

Particles are always in motion.

d)

At the same temperature the object that has the most mass heats quicker.

90.
If you spray air freshener on side of the room, why is there a delay for the smell to reach the other side of the room? 

a)
Attractive forces between air and air freshener particles
b)
Not enough air freshener particles
c)
Because the particles like where they are at
d)
Collisions between air and air freshener particles

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