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WorksheetsGas Laws
Total questions: 19
Worksheet time: 12mins
In an ideal gas, if everything else is held constant, doubling the volume will ________ the pressure.
double
halve
not affect
eliminate
In an ideal gas, if everything else is held constant, tripling the pressure will ________ the Kelvin temperature.
triple
cut into a third
not affect
equal
Which of the following is Graham's Law?
T1P1V1=T2P2V2
r2r1=M1M2
P1V1=P2V2
PV=nRT
You stand at the end of a long hallway. At the other end, your classmate releases equal amounts of two gases, carbon-dioxide and chlorine. Which one reaches you first?
Cl2
CO2
both arrive at the same time
need more information
According to kinetic molecular theory: at constant temperature, increasing the volume will decrease the pressure because...
the gas particles must travel farther from wall to wall.
P and V are on the same side of the ideal gas law equation.
the average velocity of the gas particles decreases.
the potential energy of the gas particles has gone down
According to kinetic molecular theory: at constant volume, increasing the temperature will increase the pressure because...
the gas particles are moving faster; faster = more collisions-per-second.
the heat transferred when the temp was raised is stored as potential energy.
the increased temp makes the gas particles larger resulting in more collisions.
science.
The pressure of a gas at 22 °C goes from 3 atm to 6 atm, with volume held constant. It's new temperature is...
44 °C
11 °C
317 °C
0 °C
According to kinetic molecular theory, more moles of gas means more pressure at the same volume and temperature because...
more moles = more collisions
more moles = higher gas constant
more moles = higher kinetic energy
more moles = more problems
If no air is added and no air escapes, the tires on a car are flatter in winter than in summer.
True
False
What does STP stand for?
(no caps)
(a)
What is standard temperature?
0 °C
100 °C
0 K
22 °C
What is standard pressure?
0 mmHg
1 atm
22 L/mol
6.02 x 1023
A helium balloon has a volume of 500 mL at room temperature (22 °C). What is its volume if it is left outside and discovered in the morning when it is 5 °C outside? Pressure is constant.
471 mL
114 mL
750 mL
500 mL
If you have 38 L of methane gas at 182 °C and 2 atm, what volume would it occupy at STP?
45.6 L
0.0 L
22.4 L
0.0821 L
1 atmosphere of pressure is...
the pressure of the air on top of and around you when you are at sea level
the average pressure of the atmosphere from the lowest to highest elevations on Earth
the pressure in your lungs when you breathe air from the atmosphere
the ratio of the mass of the gases that make up the atmosphere to the mass of the Earth
If I have a mixture of 2 moles of CO2 and 3 moles of O2, then the partial pressure of the oxygen is 60% of the total pressure of the combined gas.
True
False
64.0 grams of oxygen with a volume of 15.0 L is at a temperature of 27.0 °C. What is the pressure in atm?
3.28
24.6
0.00
22.4
1 mole of helium gas occupies what volume at STP?
22.4 L
0 °C
1 atm
4.00 L/mol
If you measure the volume of one mole of H2 at STP and get an experimental value of 21.8 L, what is your % error?
2.68 %
10.1 %
97.3 %
2.75 %
