Gas Laws - Assessment

1.

Multiple Choice

3 mins

1 pt

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

2.

Multiple Choice

3 mins

1 pt

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

3.

Multiple Choice

3 mins

1 pt

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?

0.9 atm

2.1 atm

1.6 atm

3.4 atm

4.

Multiple Choice

3 mins

1 pt

Three gases are mixed together in a container with a total pressure of 4.8 atm. If two of the gases have pressures of 1.2 atm and 1.5 atm, what is the pressure of the third gas?

2.5 atm

1.8 atm

2.1 atm

1.3 atm

5.

Multiple Choice

3 mins

1 pt

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

6.

Multiple Choice

3 mins

1 pt

Which of the following would increase the (gas) pressure of a system?

Increase the Temperature

Pump in more gas

Decrease the volume

All of these

7.

Multiple Choice

3 mins

1 pt

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

372

273

237

732

8.

Multiple Choice

3 mins

1 pt

What about gases can be measured?

Pressure and Volume

Temperature, Volume, and Pressure

Volume and Temperature

Pressure, Temperature, Volume, and Moles

9.

Multiple Choice

3 mins

1 pt

What is 50 °C in Kelvin?

223

323

100

50

10.

Multiple Choice

3 mins

1 pt

Charles' Law States...

As Pressure goes up volume goes down

As Pressure goes up temperature goes up

As Volume goes up temperature goes up

As Pressure goes down volume goes down

11.

Multiple Choice

3 mins

1 pt

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

7.18 L

7.81 L

4.63 L

4.36 L

12.

Multiple Choice

3 mins

1 pt

Determine the temperature required for 0.0470 mol of gas to fill a balloon to 1.20 L under .998 atm pressure.

0 K

107 K

207 K

307 K

13.

Multiple Choice

3 mins

1 pt

Pressure is

defined as the mass that an object exerts when at rest.

not a measurable in gases.

defined as the number of moles of substance divided by the mass of the substance.

created by the force of the gas particles impacting the walls of the container.

14.

Multiple Choice

3 mins

1 pt

Absolute zero is

0 K

where there is no molecular movement

the coldest temperature possible

all of these

15.

Multiple Choice

3 mins

1 pt

A sample of gas with a volume of 30.0 mL at 25.0^oC is heated to 50.0^oC. What is the new volume of the gas?

60.0 mL

15.0 mL

27.5 mL

32.5 mL

16.

Multiple Choice

3 mins

1 pt

What is the pressure exerted by 5.00 moles of nitrogen gas contained in a 30.0 Liter container at 25.0 °C?

3670 atm

0.245 atm

4.08 atm

605 atm

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