Laws
According to the kinetic-molecular theory, particles of a gas collide, but do not attract or repel each other. True or False
True
Name a device used to measure pressure
Barometer
Why is it easy to compress gas?
The particles are far apart so they are easier to condense together
List 2 types of pressure units
Kpa, atm, torr
The first step in a stoichiometry problem is _________ the equation
balancing
If the temperature of a gas remains constant, the pressure of the gas will increase when the volume of the gas is decreased. True or False
True
Equal volumes of gas at the same temp and pressure contain the same amount of _________
What happens to a fully blown up air mattress if left outside on a frozen lake
It would shrink because the gas particles move slower and their volume decreases
What pressure (in atm) is exerted by 1.5 mol of a gas in a 7.0 L container at 12 ºC?
5 atm
STP =
22.4 L
The gas most likely to deviate from ideal gas behavior is ______.
a. NH3 b. He c. H2 d. O2
NH3
The pressure of a sample of gas at constant volume is 4.0 atm at 72 ºC. What will the pressure be at 67 ºC?
3.9 atm
If you have four liters of hydrogen gas and four liters of oxygen gas at STP, what is different for the two gases? _________.
density
What pressure (in atm) is exerted by 2.3 mol of a gas in a 9.5 L container at 35 ºC?
6.1 atm
Mg+2HCl→MgCl2+H2
11.1 L of H2
Diffusion between two gases occurs most rapidly if the two gases are at a low temperature and the molecules are large. True or False
False, high and small
The volume of a gas at 19.0 ºC is 57 mL. If the volume increases to 79 mL and the pressure is constant, what will the temperature of the gas be in Celsius?
132 degrees C
The pressure of a sample of helium in a 1000 mL container is 5.0 atm. If the helium were compressed to a volume of 15 mL without changing the temperature, what would be the pressure of the gas?
333 atm
A gas occupies a volume of 45.0 mL at 925 mm Hg and 65 ºC. What is the volume of the gas at STP?
42.3 mL
2KClO3→ 2KCl + 3O2
134.4 L of O2
There is more pressure at 0.25 ATMs than at 2.5 ATMs. True or False
False, less
What pressure (in atm) is exerted by 0.67 mol of a gas in a 6.7 L container at 0 ºC?
2.2 atm
A gas occupies a volume of 30.0 mL at 794.8 mm Hg and 82 ºC. What is the volume of the gas at STP?
24.1 mL
A gas occupies a volume of 20.0 mL at 200.8 mm Hg and 27 ºC. What is the volume of the gas at STP?
4.8 mL
C3H8+5O2→3CO2+4H2O
88.5 g CO2