Kinetic Theory of Gases and Pressure Conversions Review

What does a barometer measure?

• time

• space

• temperature

• atmospheric pressure

What is the random walk?

• Gas particles only move when someone or something randomly walks by.

• Gas particles are fixed in a random static position.

• Gas particles will move in a straight line until they collide with another particle then change direction.

• Gas particles choose when to move randomly.

What is a vacuum

• space where no gas pressure is exerted

• space where all particles are sucked into a container

• space where there is no water

• System

The movement of particles (KE) in a gas are directly proportional to the temperature in Kelvin.

• True

• False

Tags

NGSS.HS-PS3-2

What causes gas pressure?

• collisions of gas particles with each other and the walls of their container

• movement in a cell

• sudden change in density

• Kinetic Energy

According to the kinetic theory of gases, the size of a gas particle is ____ compared to the overall volume that the gas occupies.

• increased
• neglible
• decreased
• large

The temperature at which the motion of a particle would theoretically stop is called _____.

• Frozen zero
• Zero
• Negatively zero
• Absolute zero

As altitude ________, atmospheric pressure decreases

• increases
• decreases
• stays the same
• shows no correlation

The height of a column of mercury in a barometer is 326.3mmHg. What is the atmospheric pressure in kPa?

• 42.93 kPa

• 2,477.6 kPa

• 326,300 kPa

• 247,988 kPa

A barometer reads an atmospheric pressure of 93.4 kPa. What is the atmopsheric pressure in atm?

• .12 atm

• 9,340 atm

• 0.93 atm

• 709.84 atm