Kinetic Molecular Theory of Gases

When matter is decreasing in temperature the particles...

• Move slower and get closer together

• Move slower and get farther apart

• Do not change speed or distance from one another

Tags

NGSS.MS-PS1-4

• Gases do not move in straight line
• Most of the volume of gas is empty space
• Gas particles are not in constant random motion
• Gas particles attract each other

Tags

NGSS.MS-PS1-4

As the _________________ of a gas increases, the kinetic energy of the particles increases. The particles move farther apart, and volume increases.

• speed

• height

• temperature

• area

Which statement is true, based on the information in the graphic?

• Gases do not move in straight line

• Most of the volume of gas is empty space

• Only gas particles are in constant motion

• Gas particles attract each other

Tags

NGSS.MS-PS1-4

Which type of motion in the figure best represents the movement of gas particles?

• Motion 1

• Motion 2

• Motion 3

• Motion 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What happens to matter as its temperature increases?

• The average kinetic energy of its particles decreases

• The average thermal energy of its particles decreases

• The particles gain kinetic energy

• The particles lose potential energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Gas pressure is caused by ______.

• gravity.

• gas molecules colliding with each other.

• gas molecules colliding with surfaces of the container.

• gas molecules reacting with each other.

Tags

NGSS.MS-PS1-4

Which of the following is true regarding the kinetic molecular theory of gases?

• Gas particles are attracted to one another.

• Gases consist of closely spaced particles.

• Gas particles move around in an orderly manner.

• The temperature of a gas depends on the average kinetic energy of the gas particles.

Which among the following is NOT true regarding the Kinetic Molecular Theory of gases?

• Gases particles move in straight lines.

• Gas particles are closely packed and their motion is orderly.

• Gas particles are in constant motion.

• Gas particles do not attract or repel each other.

Tags

NGSS.HS-PS3-2

This one is tricky!

The temperature of each flask is given in Kelvin (K). Think about how temperature affects the motion of gas particles. Now think about what causes gas pressure....

Which of the following statements is correct?

• Flask 1 has the lowest pressure

• Flask 3 has the lowest pressure

• Flask 2 has the lowest pressure

• Flask 4 has the lowest pressure

Tags

NGSS.HS-PS3-4