Gas Laws and Properties

What causes gas pressure in a closed container?

• Temperature changes

• Gas particles colliding with the walls

• Volume of the container

• Type of gas

What happens to the atmospheric pressure as elevation increases?

• It increases

• It decreases

• It remains constant

• It fluctuates randomly

What does STP stand for?

• Standard Temperature and Pressure

• Standard Time and Pressure

• Standard Temperature and Proportion

• Standard Time and Proportion

What is absolute zero?

• 0 degrees Celsius

• 0 Kelvin

• 0 degrees Fahrenheit

• 0 atm

What is Dalton’s law of partial pressure?

• The total pressure is the sum of the partial pressures of individual gases

• The pressure of a gas is inversely proportional to its volume

• The pressure of a gas is directly proportional to its temperature

• The pressure of a gas is inversely proportional to its temperature

As pressure increases, what happens to volume?

• Increases

• Decreases

• Stays the same

• Doubles

As volume increases, what happens to temperature?

• Increases

• Decreases

• Stays the same

• Halves

As pressure increases, what happens to temperature?

• Increases

• Decreases

• Stays the same

• Triples

As volume increases, what happens to moles?

• Increases

• Decreases

• Stays the same

• Halves

If a container has 0.741 moles of oxygen gas (O₂), what volume is the container if it is at STP?

• 16.6 L

• 22.4 L

• 18.7 L

• 20.1 L