Gases and Gas Laws

What happens to pressure as a gas is heated?

• Pressure increases as the frequency of collisions increases

• Pressure decreases as the frequency of collisions decreases

Under constant pressure, what happens to the

volume of a gas as the temperature increases

• Volume increases

• Volume decreases

• Volume stays the same

Tags

NGSS.MS-PS1-4

According to KMT, why can ideal gases be compressed into smaller volumes?

• Gas particles are separated by large distances

• They have strong attractive forces

• As particles collide, the energy of the system decreases

• The motion of the gas particles is circular and orderly

Gas inside a balloon originally had a volume of 3.12 L. Ernesto decides to sit on the balloon and compresses it to a final volume of 0.12 L and a final pressure of 3.14 atm. What was the original pressure?

• 2.29 atm

• 0.12 atm

• 8.28 atm

Which law?

• Charles 

• Boyle

• Hunsecker

• Newton

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Which of the following statements describes an ideal gas?

• The particles move in circles

• There are attractive forces between particles

• the volume of the particles is small compared to the total volume

• Collisions between particles reduce the total energy of the gas

A real gas behaves LEAST like an ideal gas under conditions of

• High Temp and High Pressure

• High Temp and low pressure

• Low Temp and high Pressure

• Low temp and low pressure

According to KMT how do gas particles move

• In circular motion

• In random straight line motion

• In pairs

• Gas particles dont move

A 2.0 L sample of SO2(g) in a sealed contained at STP and a 2.0 L sample

of CH4 (g) in a sealed container at STP have the same

• Molar mass

• Number of particles

• Density

• properties

The density of a gas can change depending on its container

• True

• False