No student devices needed. Know more
30 questions
A substance's melting point is the same as its
freezing point.
condensation point.
boiling point.
If you have a sample of water that is 144 °C, what state is it in?
solid
liquid
gas
If you have a sample of water that is 44 °C, what state is it in?
solid
liquid
gas
On a hot, humid summer day drops of water form on a can of cold soda. What process caused this to happen?
condensation
freezing
vaporization
deposition
What happens to particles during changes of state between solid and liquid.
Particles move so fast they break from their fixed position.
Particles melt and become a liquid.
Particles find a circular orbit around an atom's nucleus.
Particles stop vibrating and change into their liquid form.
Which of the following describes the process of freezing?
Freezing occurs when the particles of a solid vibrate so fast that they break free.
Freezing occurs when the temperature drops enough a gas turns into a solid.
Freezing occurs when the particles in a liquid slow down and take fixed positions.
Freezing occurs when the temperature of a substance drops to 0 degrees Celsius.
Which properties do solids have?
definite shape and volume
no definite shape and a definite volume
no definite shape and no definite volume
What properties do liquids have?
definite shape and volume
no definite shape and a definite volume
no definite shape and no definite volume
What properties do gases have?
definite shape and volume
no definite shape and a definite volume
no definite shape and no definite volume
When melting occurs what happens to heat and particle movement?
increase of heat and faster particles
decrease of heat and slower particles
When freezing occurs what happens to heat and particle movement?
increase of heat and faster particles
decrease of heat and slower particles
When condensation occurs what happens to heat and particle movement?
increase of heat and faster particles
decrease of heat and slower particles
When BOILING occurs what happens to heat and particle movement?
increase of heat and faster particles
decrease of heat and slower particles
True or False: In sublimation, a solid becomes a liquid first, then a gas.
True
False
When thermal energy is increased in a liquid, what change in state is happening?
Melting
Evaporation
Condensation
Freezing
What two changes of state occur when thermal energy is taken away/decreased in a substance?
Freezing
Condensation
Melting
Evaporation
What happens to the arrangement of particles as thermal energy is removed from a substance?
The particles get farther apart.
The particles get closer together.
Explore all questions with a free account