#1
Which of the following is a characteristic of a gas?
No definite volume or shape
ExplanationGases lack fixed volume or shape.
#2
What is the process of a gas changing into a liquid called?
Condensation
ExplanationGas turning into liquid is condensation.
#3
Which of the following is an example of a crystalline solid?
Salt
ExplanationSalt exhibits a crystalline solid structure.
#4
What is the term for the process of a liquid changing into a gas below its boiling point?
Evaporation
ExplanationLiquid turning into gas below boiling point is evaporation.
#5
Which of the following is an example of a Bose-Einstein condensate?
Liquid helium
ExplanationLiquid helium can form Bose-Einstein condensate.
#6
Which of the following has the highest kinetic energy?
Gas
ExplanationGas molecules exhibit the highest kinetic energy.
#7
Which of the following statements about plasma is correct?
It has no definite volume or shape
ExplanationPlasma lacks fixed volume or shape.
#8
Which of the following has the weakest intermolecular forces?
Gas
ExplanationGases generally have weak intermolecular forces.
#9
What is the term for a substance that exists in the gas phase below its critical temperature?
Supercritical fluid
ExplanationSupercritical fluid exists above critical temperature.
#10
Which of the following statements about liquids is correct?
They have definite volume but no definite shape
ExplanationLiquids have fixed volume but no fixed shape.
#11
What is the term for the conversion of a solid directly into a gas without passing through the liquid state?
Sublimation
ExplanationSublimation is solid to gas transition.
#12
Which of the following states of matter has the highest density?
Solid
ExplanationSolids generally have higher density.
#13
What is the term for the transition between solid and liquid phases of matter?
Melting
ExplanationTransition from solid to liquid is melting.
#14
Which of the following is an example of a liquid crystal?
LCD display
ExplanationLCD displays utilize liquid crystal technology.
#15
Which of the following is an example of a colloid?
Milk
ExplanationMilk is a common example of a colloid.