Kinetic Molecular Theory

Which of the following is true about gases?

• 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

Which container will have lower pressure?

• The container on the left.

• The container on the right.

Boyle's Law : When _______ is held constant, the pressure and volume of a gas are ________ proportional.

• temperature; directly

• temperature; inversely

• mass; directly

• mass; inversely

Charles's Law : When _______ is held constant, the temperature and volume of a gas are ________ proportional.

• pressure; directly

• pressure; inversely

• kinetic energy; directly

• kinetic energy; inversely

Gay-Lussac's Law : When _______ is held constant, the pressure and temperature of a gas are ________ proportional.

• volume; directly

• volume; inversely

• kinetic energy; directly

• kinetic energy; inversely

As temperature rises ___________.

• an atom's kinetic energy decreases

• an atom's kinetic energy increases

• an atom's kinetic energy stays the same

Gas particles move in ______________ unless they collide with other gas particles or the walls.

• zig-zag formations

• straight lines

• up and down movements

• back and forth movements

Gases exert_____________.

• temperature

• volume

• pressure

• moles

Pressure is caused by:

• Gas molecules colliding with the walls of the container

• Gas molecules reacting with each other

• Gas molecules colliding with each other

• Gravity

According to the kinetic molecular theory, ideal gas particles

• are separated by small distances relative to their size

• do not transfer energy when they collide with each other

• have attractive forces between them

• move in random, constant, straight-line motion