3.2 & Boyle's & Charles's Laws Gizmo Review

What causes the pressure to increase if more gas particles are added to a closed container?

• an increase in the number of collisions between the gas and the container walls

• a decrease in the volume of the container

• a decrease in the size of each particle as the number of particles increases

• an increase in the number of collisions between air particles and the outside of the container

2.When first blown up, a balloon is firm because of the air pressure inside it. However, after time, the balloon becomes soft as the air pressure inside drops. What could have caused the air pressure to decrease?

• increase in air temperature

• decrease in the balloon's volume

• decrease in the number of air particles as they leaded out of the balloon

• a chemical reaction between the air particles & the balloon

3.A gas has a volume of 15 L, a temperature of 300 K, and an unknown initial pressure. Then, the gas expands to 30 L, remains at 300 K, and has a pressure of 300 kPa. What was the initial pressure of the gas?

• 150 kPa

• 600 kPa

• 330 kPa

• 570 kPa

According to Charles’s law, the relationship between the temperature and the volume of a gas is

• direct

• inverse

• exponential

• inverse square

When the temperature of the gas in closed container is increased, the pressure increases.

• True

• False

Tags

NGSS.MS-PS1-4

The volume of the ideal gas in the container is 9 m3. What would the volume be if four more blocks were placed on top of the lid of the container with the temperature of the gas kept constant? (The lid itself has a mass equal to that of two blocks.)

• 81

• 18

• 4.5

• 3

Which of the following graphs correctly represents the relationship between the pressure and the volume of an ideal gas that is held at constant temperature?

• A

• B

• C

• D

The temperature of the ideal gas in the container shown is 300 K. The gas occupies a volume of 1.27 m3. What would be the volume of the gas if its temperature were decreased to 100 K? No blocks are added to or removed from the lid.

• 0.423

• .635

• 1.27

• 3.81

Tags

NGSS.HS-PS3-2

Which of the following graphs correctly represents the relationship between the temperature and the volume of an ideal gas that is held at constant pressure?

• A

• B

• C

• D

The volume of an ideal gas in a container is 2.0 L. What will be the volume of the gas if the pressure on the container is doubled while the temperature is reduced from 400 K to 200 K?

• 0.5

• 2.0

• 4.0

• 8.0