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Gas Law Solving

100

A sample of krypton gas occupies 2 mL at 10 atm. If the temperature remained constant, what volume would the krypton occupy at 2 atm?

10mL

200

A sample of gas has a pressure of 700mmHg at 303K. At what temperature would the pressure be 600mmHg if the volume remains constant?

300K

300

A sample of gas has a pressure of 700mmHg at 30⁰C. At what temperature would the pressure be 600mmHg if the volume remains constant?

300K

400

A weather balloon is filled to a volume of 45.0 L on a day when the temperature is 273K. If no gases escape, what would be the volume of the weather balloon after it rises to an altitude where the temperature is 280K?

Include correct rounding and sig figs!

46 L

500

A sample of gas has a pressure of 700mmHg at -8.00C. At what temperature would the pressure be 600mmHg if the volume remains constant?

200 K

Phase Changes & Matter

100

Solid to liquid is an example of which phase change?

melting              vaporization

sublimation         deposition

melting

200

The molecular movement of a liquid can be best described as: 

slow moving/flowing

fast moving/rapid

fast moving/rapid & charged

slow moving/flowing

300

True or False: Condensation is an exothermic process 

Hint:

Exothermic - releases heat

Endothermic - absorbs heat

True

400

Which of the following is an endothermic phase change?

freezing

condensation

melting

melting

500

Which of the following is an exothermic phase change?

freezing

vaporization

melting

freezing

Pressure Conversions

100

Which of the following is a unit of pressure?

L

K

atm

mL

atm

200

Which of the following are not a units of pressure?

mL

mmHg

atm

K

mL and K

300

Convert 760 mmHg to torr

760 torr

400

Convert 2.5 atm to mmHg

1900 mmHg

500

Convert 600 mmHg to kPa. Include correct sig figs

80 kPa

Gas Law Rules

100

True or False?

You only add 273 to a Celsius temperature if it is in the negatives

False - add it to ALL Celsius temperatures 

200

Convert the following temperature from Celsius to Kelvin

5⁰C

278 K

300

Which 2 units are units of pressure

mL

atm

L

torr

atm, torr

400

True or False:

-1⁰C = 272K

True

500

True or False: It is acceptable to have a negative answer when solving for temperature in a gas law problem.

False

Gas Law Relationships

100

What are the 3 variables we investigate when we work with gases?

mL, P, V

P, V, T

L, mmHg, atm

P, V, T

200

The relationship between T and V is:

Direct or inverse?

Direct

300

When volume and pressure are being studied what variable (P, V or T) is held constant?

T = temperature 

400

The relationship between P and V is:

Direct or inverse?

Inverse

500

The relationship between T and V is:

Direct or inverse?

Direct