Gas Laws
What is Boyle's Law?
volume and pressure are inversely proportional
If the volume of a balloon increases, what happens to its temperature?
increases
Solve the ideal gas law for pressure
P = nRT/V
How many moles of nitrous oxide gas (N2O) is contained in 20.0 L balloon at a pressure of 110.0 kPa and a temperature of 25 °C?
Which law states that temperature and volume are proportional?
Charles' Law
If the pressure inside a closed container decreases and the volume of the container stays the same, what changed?
the temperature decreased
Solve the ideal gas law for moles
n = PV/RT
0.02 mol of Argon fit in a light bulb at STP. What is the volume of the light bulb?
0.475 L
What type of relationship exists between pressure and number of moles?
directly proportional
If more gas is blown into a balloon, what will change? How will it change?
volume increase
temperature increase
pressure increase
Solve the ideal gas law for temperature
T = PV/nR
What pressure would be required to contain 10 mol of SO2 gas in a 25.0 L container at a temperature of 100. °C?
12.3 atm
What is Gay-Lussac's Law?
temperature and pressure are directly proportional
If the volume of a can is reduced, what happens to the pressure?
increases
Solve the ideal gas law for volume
V = nRT/P
An air-filled balloon has a volume of 225 L at 0.940 atm and 25 °C. Soon after, the pressure changes to 0.990 atm and the temperature changes to 0 °C. What is the new volume of the balloon?
196 L
proportional; Avogadro's
If a waterbottle is crushed, it releases steam. This is an example of the relationship between which two variables?
Solve the ideal gas law for R
R = PV/nT
A sample of Br2 gas is loaded into an evacuated demonstration bottle at STP. The volume of the bottle is 0.25 L. How many moles of Br2 gas will be contained in the bottle?
0.01 mol