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WorksheetsReview Quiz States of Matter WG
Total questions: 79
Worksheet time: 2hrs 23mins
What is the process called when water vapor cools and forms droplets on the outside of a glass?
Evaporation
Freezing
Condensation
Melting
Which of the following is an example of a substance changing from a liquid to a gas?
Ice melting
Water boiling
Water freezing
Condensation on a glass
What is the state of matter of water at room temperature?
Solid
Liquid
Gas
Plasma
What happens to the molecules of water when it changes from a liquid to a solid?
They move faster.
They move slower and arrange in a fixed pattern.
They disappear.
They become gas molecules.
A form or state of matter is a
phase
graduated cylinder
property
particle
The picture demonstrates which phase of matter?
gas
mass
solid
liquid
The amount of space an object takes up.
property
volume
matter
mass
Which state of matter has a definite shape and volume?
gas
liquid
solid
plasma
The Kinetic Molecular Theory states that:
Particles within liquids and gases are moving, but they are not moving within solids.
Particles within gases are moving, but they are not moving in solids and liquids.
All matter is made of moving particles.
Which state of matter has the greatest density?
Solid
Liquid
Gas
They would all have the same density, if they are the same substance.
Which state of matter has the greatest entropy?
Solid
Liquid
Gas
They would all have the same entropy, if they are the same substance.
Which state of matter has particles with the lowest average kinetic energy?
Solid
Liquid
Gas
Temperature is a direct measure of:
The density of the particles within a substance.
The average speed of the particles within a substance.
How often the particles collide with the walls of their container.
As the temperature of a substance increases:
The speed, and average kinetic energy of the particles, both increase.
The speed, and average kinetic energy of the particles, both decrease.
The speed of the particles increases, but the average kinetic energy of the particles decreases.
The speed of the particles decreases, but the average kinetic energy of the particles increases.
Absolute Zero is defined as:
The lowest temperature which can be achieved by scientists.
The lowest temperature which can be recorded on a thermometer.
The theoretical temperature at which all particles stop moving.
The temperature of a cold block of copper.
According to Kinetic Molecular Theory (KMT) ideal gas particles move.....
In circular paths
randomly in straight lines
in opposite directions
up and down
Real gases have volume and occupy space
True
False
Ideal gases differ from real gasses because real gasses
Have attractive forces
Have no attractive forces
Have mass
Do not have mass
According to Kinetic Molecular Theory, when gas particles collide
There is transfer but no loss of energy
There is no transfer and no loss of energy
There is no transfer and loss of energy
There is transfer and loss of energy
What conditions make a gas act more like an ideal gas
Low temperature and low pressure
Low temperature and high pressure
High temperature and low pressure
High temperature and high pressure
Kinetic molecular theory states we can compress gases because gas particles
Have no volume
Have no attractive forces
Are separated by relatively large distances
Are separated by relatively small distances
Kinetic molecular theory states that for an ideal gas
The mass of gas particles is negligible
The volume of the gas particles is negligible
As the volume of a gas decreases, the density of the gas
Does not change
Increases
Decreases
Which of the following is an assumption of the kinetic-molecular theory of gases?
Collisions between gas particles are inelastic.
Gases consist of closely spaced particles.
Gas particles move around in an orderly manner.
The temperature of a gas depends on the average kinetic energy of the gas particles.
Pressure is caused by:
Gas molecules colliding with surfaces
Gas molecules reacting with each other
Gas molecules colliding with each other
Gravity
A hypothetical gas that perfectly fits all the assumptions of the kinetic molecular theory is known as
real gas
ideal gas
imaginary gas
perfect gas
Under what conditions do real gases behave most like an ideal gas?
Low temperature and low pressure
Low temperature and high pressure
High temperature and low pressure
High temperature and high pressure
According to the Kinetic Molecular Theory, what is true about the particles in an ideal gas?
They have a significant volume.
They have inelastic collisions.
They attract or repel each other.
They have elastic collisions and are in constant, random, straight-line motion.
What is the relationship between the average kinetic energy (KE) of particles in an ideal gas and the temperature?
The average KE is inversely related to the Kelvin temperature.
The average KE is directly related to the Kelvin temperature.
The average KE is unrelated to the Kelvin temperature.
The average KE decreases as the Kelvin temperature increases.
Do particles in an ideal gas attract or repel each other?
They attract each other.
They repel each other.
They both attract and repel each other depending on the conditions.
They do not attract or repel each other.
What is a characteristic of particles in a REAL gas?
They do not have their own volume
They do not attract each other
They have their own volume
They are always in a solid state
What is a characteristic of gases that differentiates them from solids and liquids in terms of their ability to fill containers?
Gases cannot fill any container.
Gases expand to fill any container.
Gases can only fill containers of specific shapes.
Gases fill containers based on their color.
Which of the following statements is true about gases compared to liquids?
Gases have a definite shape and volume.
Gases and liquids both have strong intermolecular attractions.
Gases are fluids and have no attraction between particles, unlike liquids.
Gases are not considered fluids.
When studying gases, STP is ____________________________
273 oC and 1 atm
273 K and 100 torr
273 oF and 100 kPa
273 K and 1 atm
The 4 variables we consider when studying gases are
Volume, mass, container size, temperature
Amount, mass, temperature, energy
Pressure, amount, volume, temperature
Amount, Pressure, mass, density
Which of the physical states of water contains particles with the lowest kinetic energy?
Water
Ice
Steam
Melting ice
The conversion of a solid to a vapor is called ________.
liquefaction
sublimation
crystallization
condensation
The term kinetics means _________.
movement
force
friction
energy
An exothermic process is a process in which _____.
the substance gains heat
the substance loses heat
the substance is dissolved
the substance becomes a liquid
When a solid is made into a gas without going through a melting phase, it is called ________.
sublimation
melting
condensation
evaporation
What accounts for an atom's atomic mass?
the total of all it's subatomic particles
total number of protons
total number of neutrons
total number of electrons
What decides an atom's atomic number?
total number of electrons
total number of neutrons
total number of protons
What is the mass number of an atom equal to?
total number of protons
total number of electrons
total number of neutrons
total number of protons plus neutrons
What does 1.00794 represent?
Hydrogen
atomic number
atomic mass
atomic explosion
N
(a)
Ca
(a)
What percentage of carbon monoxide (CO) is carbon? Round your answer to the nearest tenth.
What is the percentage of oxygen in carbon dioxide? (CO2)
27.3%
72.7%
30%
70%
What is the molar mass of water (H2O)?
18.02g/mol
17.01g/mol
16g/mol
1.01g/mol
How many moles of Ca do you have if you have 2 g of Ca?
0.05 mol Ca
80.16 mol Ca
20.01 mol Ca
Find the percent composition of Cu2S?
%Cu= 67.987 %S= 32.013
%Cu= 79.854 %S= 20.145
%Cu= 35.946 %S= 64.054
How many molecules of water are in a 821.3 g sample?
45.58 molecules
8.232 x 1025 molecules
8.909 x 1027 molecules
2.744 x 1025 molecules
Shivani measures out 6.0 moles of epsom salt (MgSO4) to put in her bath. How many grams of MgSO4 went in the bath?
3.6 x 1024 g
720 g
0.050 g
340 g
H = 50%
H = 14.3%
H = 7.8%
H = 28.1%
What is the molar mass of PbSO4?
303.27 g/mol
255.27 g/mol
163.87 g/mol
372.27 g/mol
Convert 30°C into Kelvin.
252K
316°C
303K
-163°C
Convert -21°C into Kelvin.
252K
316°C
303K
-163°C
Convert 110 Kelvin into °C.
252K
316°C
303K
-163°C
How do you convert Celsius to Kelvin?
Subtract 273
Add 273
Multiply by 1000
Divide by 1000
What is absolute zero?
The highest possible temperature
The temperature where all molecules stop moving
-273 degrees celsius
The temperature where water boils
What does STP stand for in chemistry and what are the units?
Super Temperature Pressure...Kelvin and atmospheres
Standard Tangible Point...Celsius and torr
Standard Temperature and Pressure...Kelvin and atmospheres
Standard Temperature and Pressure...Celsius and kPa
What does STP stand for?
Same Time and Place
Standard Temperature and Pressure
Standard Time and Place
Same Temperature and Pressure
Convert 540 mmHg to kPa; round your answer to correct sig figs.
71.976 kPa
72 kPa
4051 kPa
4100 kPa
What is STP for gases?
273 K, 1 atm
0 °C; 760 mm Hg
-273 °C; 1 psi
0 K, 760 torr
The weaker the intermolecular forces of a substance the _____________ the boiling point
higher
lower
What is the normal boiling point of water
0oC
100oF
50oC
100oC
What is vapor pressure?
the force of the gas above a liquid
the force of a gas below a liquid
the force of a liquid below a gas
boiling point
evaporation
Under which conditions of temperature and
pressure would helium behave most like an
ideal gas?
50 K and 20 kPa
50 K and 600 kPa
750 K and 20 kPa
750 K and 600 kPa
How many molecules are in 2.50 mol of NaCl?
1.51x1023
146
4.15
1.51x1024
What is the mass of one mole of silver?
32.06 g
107.87 g
14.01 g
22.99 g
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3?
1.26 moles
0.8 moles
7,670 moles
1.63 x 10-22 moles
