States of Matter
What are the 3 states of matter discussed in this class?Double Points:
What is the fourth state of matter/
Solids, Liquids, Gases
Bonus:
Plasma
The phase change from a solid to a liquid?
Melting Point
This gas law states that pressure and volume are indirectly related when temperature is constant.
Boyle's Law
What is the equation used to relate Pressure, Volume, Temperature, and Moles of gas?
PV=nRT
Which gas law best explains why a chip bag increases in size as it goes up in altitude?
Boyles Law
Which state of matter has a definite shape and volume?
Solids
Process when a solid changes directly to a gas?
Sublimation
This gas law states that pressure and temperature are directly related when volume is constant.
Gay-Lussacs Law
What units must pressure and volume be in to use the gas constant R= 8.31?
Bonus:
what about when R = 0.0821?
Pressure=kPa
Volume=m3
Bonus:
Pressure = atm
Volume = liters
Which gas law best explains why your bike tires might be flatter after being out in the cold air at night?
Charles Law or Gay Lussacs
What state of matter has an undefined volume and takes the shape of its container?
Gases
Phase change from a liquid to a gas?
Double Points:
What are the two ways this process can take place?
Vaporization
Bonus:
Evaporation and Boiling
This Gas Law states that volume and temperature are directly related when pressure is constant.
Charles's Law
A gas has a pressure of 2.0 atm, a volume of 5.0 L, and a temperature of 300 K. How many moles are present?
0.41 moles of gas
Which law explains why it is strongly advised to keep aerosol cans away from heat?
Gay Lussacs
Particles in this state has enough kinetic energy to move by each other but not overcome attractive forces.
Liquids
The phase change from gas directly to solid?
Deposition
A sealed container has a pressure of 2.2 atm at 20 C What is the pressure at 120 C?
Double Points:
What is the new pressure in kPa
2.95 atm
bonus:
299 kPa
A gas has a pressure of 100,000 Pa, volume of 5.0 m3, and contains 2.0 mol. What is the temperature?
30.1 Kelvin
Convert 450 mL to m3?
0.00045 m3
According to kinetic theory, particles in this state have the lowest kinetic energy.
Solids
Explain why temperature does not change during melting using kinetic theory. (Why is there a plateau in the heating curve during the melting process?)
Energy is used to overcome intermolecular forces, not increase kinetic energy.
A gas has P₁ = 1.0 atm, V₁ = 2.0 L, T₁ = 27 C . If V₂ = 1.5 L and T₂ = 30 C, what is P₂?
P₂=1.35 atm
DAILY DOUBLE:
How many grams of N2 are in a flask with a volume of 252 mL at a pressure of 2150 mm Hg and a temperature of 56.4 degrees celcius?
0.74 g N2
Convert 1840 mmHg to atmospheres?
2.42 atm