Understanding Gases and Pressure

What characteristic of gases allows them to fill any container they are placed in?

• They contract to fit the container.

• They expand to fill the container.

• They have a fixed volume.

• They have a fixed shape.

According to Boyle's Law, what happens to the pressure of a gas if the volume of its container is decreased while temperature remains constant?

• Pressure decreases.

• Pressure increases.

• Pressure becomes zero.

• Pressure remains the same.

Which equation represents the ideal gas law?

• P = F/A

• PV = nRT

• P = nRT/V

• V = nRT/P

In the context of gas laws, what is the unit of pressure?

• Newtons

• Kelvin

• Pascals

• Moles

Why might the ideal gas law not perfectly predict the behavior of real gases?

• Because of variations in particle size and mass.

• Because gases have a fixed volume.

• Because gases do not exert pressure.

• Because temperature is not a factor.