Gases
Liquids
Solids
Phase Diagrams and Calculations
Miscellanious
100
Do particles in the gas state have higher or lower kinetic energy than particles in the liquid state?
Higher
100
Liquid particles sliding past one another gives them the ability to __________.
Flow
100
Solids have a definite shape and volume. True or false?
True
100
What is 100°C in Kelvin?
373 K
Temp in K = Temp in °C +273
100
Which state of matter has an indefinite shape but a definite volume?
Liquids
200
What causes gas pressure?
The collision of gas particles with each other.
200
Describe the strength of the intermolecular forces within liquids.
Stronger than gases but weaker than solids.
200
What is the freezing point of a substance?
The temperature at which liquid changes to solid.
200
What belongs on the x-axis of a phase diagram?
What belongs on the y-axis?
Temperature on the x-axis.
Pressure on the y-axis.
200
Which state of matter has the strongest intermolecular forces?
Solids
300
Gases have the strongest intermolecular forces. True or False?
False. Solids have the strongest IM forces.
300
If you increase the temperature of a liquid, the rate of evaporation of that liquid will also increase. True or false?
True
300
Define sublimation.
A change in state from solid directly to gas.
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300
Which state of matter is the most dense?
Solid
300
Liquid A has much weaker intermolecular forces than Liquid B. Which would you expect to evaporate faster?
Liquid A
400
What is standard pressure in kilopascals (kPa)?
101.3 kPa
400
Is evaporation a cooling or heating process?
Cooling
400
Do ionic or molecular solids have stronger intermolecular forces?
Ionic solids
400
What is the boiling point of water?
100 °C
400
The energy of motion is known as....
Kinetic energy
500
As altitude increases, does atmospheric pressure increase or decrease?
Decrease.
500
Define the normal boiling point of a liquid.
The temperature at which the vapor pressure of the liquid is equal to standard pressure.
VP = 1 atm
500
The melting points of molecular solids tend to be much higher than ionic solids. True or false?
False. Ionic solids tend to have higher melting points because of the strong attraction between particles.
500
1 atm = 101.3 kPa = 760 mmHg
Convert 5.01 atm to kPa.
508 kPa
500
Is the boiling point of water higher or lower on top of a mountain than it is at sea level (i.e., standard pressure)?
Lower than at sea level
