Chemistry B CP Test 2 Review

A student measures the pressure and volume of an empty water bottle to be 1.4 atm and 2.3 L. She then decreases the pressure to 0.65 atm. What is the new volume?

• 2.1 L

• 5.0 L

• 8.2 L

• 3.9 L

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What is the pressure of a car tire that had an initial pressure of 1.8 atm but was heated from 38°C to 123°C?

• 5.8 atm

• 2.3 atm

• 1.4 atm

• 3.4 atm

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

Calculate the volume that a 0.323 mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.

• 0.128 L 

• 7.80 L

• 95.1 L

• 0.0105 L

Match the following units to their names.

• mmHg

• Pressure

• K

• Moles

• L

• Pressure

• atm

• Temperature

• mol

• Volume

What unit must temperature be in when solving a gas law problem?

• atm

• ^oC

• ^oF

• K

• L

Which of the following changes would cause a decrease in the volume of a gas?

SELECT ALL THAT APPLY!!!

• Lowering the temperature

• Increasing the pressure

• Increasing the temperature

• Lowering the pressure

Gas particles are in constant motion. They travel in straight lines, and they constantly bounce off the walls of any container that holds them.

What does this constant bombardment of particles against the walls of the container create?

• Pressure

• Density

• Temperature

• Magnetism

Consider a sample of oxygen gas at 27.0 °C with a volume of 9.55 L at a pressure if 2.97 atm.  The pressure is changed to 6270 torr and the gas is heated to 125 °C.  What’s the new volume? 

• 4.56 L
• 12.7 L

• 15.9 L
• 0.00600 L

Tags

NGSS.HS-PS3-1