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- Multiple ChoicePlease save your changes before editing any questions.
What type of change occurs when water changes from a solid to a liquid?
A Chemical Change
A physical Change
A Irreversible change
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following will cause a decrease in a gas pressure in a closed container?
Lowering temperature
decreasing size of container
Adding more gas
Adding more heat
- Multiple ChoicePlease save your changes before editing any questions.
Raising the temperature of a gas will increase its pressure if the volume of the gas
and the number of particles increase
is increased but the number of particles is constant
and the number of particles are constant
is constant but the number of particles is increased.
- Multiple ChoicePlease save your changes before editing any questions.
The temperature and volume in a closed container of gas will remain constant. If the number of particles of a gas is increased, the gas pressure will?
Increase
Decrease
Remain Constant
cause a decrease in the average kinetic energy of the particles
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following factors do NOT affect the pressure of an enclosed gas?
Temperature
Volume
Number of particles
Type of substance
- Multiple ChoicePlease save your changes before editing any questions.
When water vapor loses heat it becomes?
Solid
Liquid
Gas
- Multiple ChoicePlease save your changes before editing any questions.
When gas goes directly into a solid it is called?
Deposition
Vaporization
condensation
Evaporation
- Multiple ChoicePlease save your changes before editing any questions.
When water releases heat it becomes a ?
Solid
Liquid
Gas
- Multiple ChoicePlease save your changes before editing any questions.
Collisions of helium atoms and the walls of a closed container cause?
Condensation
Gas pressure
a decrease in volume
A overall loss of energy
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following phase changes is an endothermic change?
Condensation
vaporization
Deposition
freezing
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following phase changes is an exothermic change?
Sublimation
Deposition
vaporization
melting
- Multiple ChoicePlease save your changes before editing any questions.
When liquid changes to gas it is called?
Condensation
Evaporation
Solid
precipitate
- Fill in the BlankPlease save your changes before editing any questions.
A(an) _________________________ has definite volume and a definite shape.
- Fill in the BlankPlease save your changes before editing any questions.
Materials can be classified as solids, liquids and gases based on whether their shapes and ______________ are definite.
- Multiple ChoicePlease save your changes before editing any questions.
The shape remains constant when it is moved from one container to another. This material is a ?
Solid
Liquid
Gas
- Multiple ChoicePlease save your changes before editing any questions.
The motion of one particles of a gas in unaffected by the motion of other particles of a pas unless the particles?
Colloid
Fall out
Collide
- Multiple ChoicePlease save your changes before editing any questions.
The pascal is the SI unit for ?
Volume
Pressure
Temperature
measurement
- Fill in the BlankPlease save your changes before editing any questions.
What happens to temperature during phase change?
- Multiple ChoicePlease save your changes before editing any questions.
When liquid begins to cool, kinetic energy?
Increases
Decreases
- Fill in the BlankPlease save your changes before editing any questions.
When ice absorbs heat it becomes a ?
- Multiple ChoicePlease save your changes before editing any questions.
Ninety Nine percent of all the matter that can be observed in the universe exists as?
Gases
plasma
Liquids
solids
- Multiple ChoicePlease save your changes before editing any questions.
What is the result of a force over an area?
Temperature
volume
Pressure
Mass