Gas Law Relationships
This law shows an inverse relationship between pressure and volume.
Boyle's Law
Standard temperature in Kelvins
273 K
If 22.5 L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume?
23.2 L
Which law is needed?
A container of gas is initially at 0.500 atm and 25 ˚C. What will the pressure be at 125 ˚C? Assume the volume and amount of gas remains constant.
Gay-Lussac's Law
Increase
A gas occupies 53.2 L at a pressure of 0.70 atm with a constant temperature. What will be the new volume if the pressure increases to 1.72 atm?
21.65 L or 21.7 L
48.74 degrees Celsius
321.74 OR 321.89
1.58 mL to L using scientific notation!
1.58 x 10-3 L
An increase in temperature will cause the movement of particles to ______________.
increase
Identify each variable: A weather balloon contains 59.5 L of helium at sea level, where the atmospheric pressure is 101.3 kPa. The balloon is released from an altitude of 10,000m where the pressure is 61.7 kPa. What is the volume of the balloon when it is released?
V2= ?
V1=59.5 L
P1= 101.3 kPa
P2= 61.7 kPa
112 L to mL
112,000 mL
What formula is needed for the following problem:
A sample of SO2 gas has a volume of 1.16 L at a temperature of 296 K. At what temperature will the gas have a volume of 1.25 L?
T2= V2T1 / V1
If the volume of a container increases, what will happen to the quantity of the gas?
Nothing, no change
The value of the ideal gas constant needed if pressure is in mm Hg is ____________.
62.36 L * mm Hg / K * mol.
Convert 325 K to Celsius
52 oC
Molar mass of Ga2(SO3)3
379.6 g/mol
In the combined gas law, what is the variable remaining constant?
Amount of Gas (moles)
ID the variables AND solve
A gas takes up a volume of 17 L at standard pressure with a temperature of 350 K. What is the new volume is the pressure were raised to 2.5 atm and temperature lowered to 290K?
V1: 17 L
T1:350 K
P1: 1 atm
P2: 2.5 atm
T2: 290 K
V2: ? 8.21L
Solve for the unknown variable:
P1 = ?
V1 = 10 mL
P2 = 100 kPa
V2 = 15 mL
150 kPa
A gas takes up a volume of 17 L at standard pressure with a temperature of 299 K. What is the new volume if the pressure were raised to 2.5 atm and temperature raised to 350 K?
7.9 L or 8.0 L