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STP
Units
Gas Laws Calculations
Vocabulary
Gas Laws Relationships
100
What is standard pressure in atmospheres?
1 atm
100
Name one unit for volume.

L, mL, cm3

100
What is 45 degrees Celsius in Kelvin?
318 K
100
What law shows the relationship between pressure and volume?
Boyle's Law
100
What happens to the pressure of a gas if its temperature increases?
pressure increases
200
What is standard temperature in degrees Celsius?
0 degrees Celsius
200
Name one unit of pressure
atm, mmHg, torr, kPa
200
The pressure of a gas is 2 atm in a 50 mL container. What is the new pressure if compressed to 18 mL?
5.56
200
What law explains why a balloon will expand when heated?
Charles' Law
200
Is the relationship between temperature and volume direct or inverse?
direct
300
How do you convert degrees Celsius to Kelvin?
add 273
300
What unit of temperature do gas law problems need to be in?
Kelvin
300
The total pressure of three gases in a container is 75 atm. Gas A exerts 24 atm, while Gas B exerts 12 atm. What is the pressure of Gas C? 
39 atm
300
What law states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases?
Dalton's Law of Partial Pressures
300
If the volume of a gas decreases, will the pressure increase or decrease?
the pressure will increase
400
What is standard pressure in mm Hg?
760
400
What does the "n" stand for in the Ideal Gas Law Formula?
moles
400
A gas at 298 K has a volume of 10 L and a pressure of 1.2 atm. How many moles of gas are in the sample?
0.49
400
What law would you use to find the number of moles?
Ideal Gas Law
400
Is the relationship between pressure and volume: direct or inverse?
inverse
500
What is standard pressure in kPa?
101.3
500
What does the number 0.0821 represent?
R = gas constant
500
A gas has a pressure of 340 mmHg at 450 K. What is the temperature in degrees Celsius if the pressure increases to 560 mmHg?
468.18
500
What law states that equal volumes of gases at the same temperature and pressure contain the same number of molecules?
Avogadro's Law
500
According to Avogadro's Law, the same volume of two gases at the same temperature and pressure would have 

a. the same mass

b. equal numbers of molecules

c. unequal moles

d. equal numbers of electrons

b. equal numbers of molecules