Pre AP/GT Gas Laws Exam

If the number of moles of gas inside of a container increases, what will happen to the volume of the container if both temperature and pressure are kept constant?

• The volume will increase.
• The volume will decrease.
• The volume will remain constant.
• None of the above.

A container is filled with helium gas. It has a volume of 4.0 liters and is at a temperature of 20.oC. If the temperature of the container is increased to 35 oC without removing any of the gas or changing the pressure, what will the new volume be?

• 4.2 liters
• 7.0 liters
• 60 liters
• 3.7 liters

3.00 moles of helium gas (He) are in a container with a volume is 2.00 liters and a temperature is at 298 K. What is the approximate pressure in kilopascals?

• 3710 kPa
• 14900 kPa
• 4950 kPa
• 7150 kPa

What would be the volume of 4.00 moles of nitrogen gas at standard temperature and pressure (STP)?

• 112 L
• 5.60 L
• 145 L
• 89.6 L

There are 12.00 moles of an ideal gas kept inside a container with a volume of 2.50 liters. It is kept at room temperature (20oC). What is the approximate pressure of the gas in kilopascals?

• 11 690 kPa
• 798 kPa
• 8 790 kPa
• 115 kPa

Robert Boyle contributed to our understanding of gases by describing the relationship between -

• pressure and volume
• volume and temperature
• volume and number of moles
• pressure and temperature

If the pressure of gas inside of a container increases, what will happen to the temperature of the container if both volume and number of moles are kept constant?

• The temperature will increase.
• The temperature will decrease.
• The temperature will remain constant.
• None of the above.

If the pressure inside of a container increases, what will happen to the volume of the container if both temperature and number of moles are kept constant?

• The volume will increase.
• The volume will decrease.
• The volume will remain constant.
• None of the above.

Which of the following is not a point made by the kinetic molecular theory of gases?

• Gases are composed of tiny particles.
• The speed of gas particles is related to the temperature of the system.
• Gas particles are always moving with high speed random motion.
• Gas particles do not have mass or take up any space.

which of the following sets of conditions would not be considered Standard Temperature and Pressure

• 0oC and 1 atmosphere
• 273 K and 101.3 kilopascals
• 0oC and 775 millimeters of mercury
• All of these sets of variables are considered to be STP