Quiz 1: Gas Laws

A student inflates a balloon with Nitrogen gas then placed it in a freezer. the student should expect

• The balloon's volume to increase

• The balloon's moles to increase

• The balloon's volume to decrease

• The balloons moles to decrease

In order to convert to Kelvin, you add ____ to the Celsius measurement.

• 372

• 237

• 273

• 732

What is 50 degrees Celsius in Kelvin?

• 223

• 150

• 123

• 323

Charles Law states that

• As pressure goes up volume goes down

• As temperature goes up volume goes up

• As volume goes down temperature goes up

• As pressure goes down volume goes down

How does the temperature affect the average kinetic energy of gas molecules?

• as the temperature decreases the average kinetic energy of gas molecules decreases

• as the temperature decreases the average kinetic energy of gas molecules increases

• as the temperature decreases the average kinetic energy remains the same

• as the temperature decreases the average kinetic energy fluctuates

Each of these flasks contains the same number of molecules. In which container is the pressure highest?

• flask 1

• flask 2

• flask 3

• flask 4

Assume that the temperature remains constant. How can you increase the pressure of a gas?

• Increase the container volume.

• Add more molecules of the gas.

• Decrease the container volume.

• None of the above.

You drove continuously from Bukidnon to Surigao, and you observed that the pressure in your tires increased. This is because of the increased temperature outside the tire caused by friction.

• True

• False

Each of these flasks is the same size and at the same temperature. Which one contains the most gas molecules?

• Flask 1

• Flask 2

• Flask 3

• Flask 4

A student measures the pressure and volume of an empty bottle to be 1.8 atm and 2.5 L. She then decreases the pressure to a 0.75 atm. What is the new volume now?

• 2 L

• 4 L

• 6 L

• 8 L