Gas and Gas Laws

At a constant pressure, the volume decreases.  What happens to the temperature?

• increases
• decreases
• stays the same

At a constant volume, the pressure increases.  What happens to the temperature?

• increases
• decreases
• stays the same

At a constant temperature, the volume decreases.  What happens to the pressure?

• increases
• decreases
• stays the same

A 2.00 L sample of pure oxygen gas (O₂) is measured at STP.  How many moles of oxygen is this?

• 24.4 mol
• 0.007 mol
• 1.44 mol
• 0.09 mol

At STP (Standard Temperature and Pressure), a gas has a volume of
3.0 L. What is the new volume if the pressure increases to 303.9 kPa? 

• 9.0 L
• 1.0 L
• 9.0 kPa
• 1.0 kPa

Under which of the following conditions do REAL gases behave most like IDEAL gases?

• High pressure and high temperature
• High pressure and low temperature
• Low pressure and low temperature
• Low pressure and high temperature

Which of the following is NOT a part of Kinetic Molecular Theory?

• Gas particles have mass and occupy space (the individual particles have volume)
• Gas particles do not have mass and occupy space (the individual particles have volume
• Gas particles move in straight lines
• The more heat energy the gas particles have, the faster they move

Diffusion is

• the ability of one gas to mix with another gas.
• the rate at which a gas flows through the air.
• an explosion of gases.
• the ability of a gas to move from a high pressure to a low pressure.

What are the values for STP?

• 0 K and 1 atmosphere

• 0ºC and 1 atmosphere

• 32ºF and 1 atmosphere

• 100ºC and 1 atmosphere

What is zero degrees Celsius converted to Kelvin?

• 100

• 273

• 373

• 212