POWERPOINT JEOPARDYRandomDalton’s LawIdeal GasCombinedRelationship
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Is the relationship between temperature and pressure
direct or inverse?
Relationship– 10 Points
Direct
If the volume of a gas increases, what will
happen to the pressure?
Relationship– 20 Points
The pressure will decrease.
A balloon is placed into a freezer at a much colder
temperature than the balloon, what will happen to the volume of the balloon?
Relationship– 40 Points
It will decrease.
Under constant volume and pressure, what will happen to
the temperature inside a container if more gas is added
to it?
Relationship– 50 Points
The temperature will decrease.
If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its
volume is 4.8 L, what will the new pressure inside the piston be?
Combined– 10 Points
1.75atm
At 189 K, a sample of gas has a volume of 32.0 cm3. What volume does the gas occupy at 242 K?
Combined– 20 Points
25.0cm3
A cylinder of gas has a pressure of 4.40 atm at 25°C. At what
temperature, in °C, will it reach a pressure of 6.50 atm?
[remember to convert to K first then back to °C!]
Combined– 30 Points
167 °C
The sample now has a volume of 392mL at a pressure of 0.987 atm and a temperature of 21°C. What
was the original temperature (in °C) of the gas, if the volume was 379 mL and the pressure was 0.992
atm?
Combined– 40 Points
12.7 °C
A piston containing argon gas, o originally in a volume of 3.50 L
at 650. mmHg and –75°C is heated to 358°C and a pressure
of 875 mmHg. What is the change in the volume of the
piston?
Combined– 50 Points
4.79 L
Oxygen gas is collected at a pressure of 123 kPa in a
container which has a volume of 10.0 L. What temperature must
be maintained on 0.500 moles of this gas? Express the temperature in degrees Celsius.
Ideal Gas– 10 Points
23°C
How many moles of chlorine gas would occupy a volume of 35.5 L at a pressure of 100.0 kPa and
a temperature of 100. C?
Ideal Gas– 20 Points
1.15mol
What is the volume of a balloon if it contains 3.2 moles of helium at a temperature of 20.0 C and
2.0atm?
Ideal Gas– 30 Points
38.5L
What pressure in atmospheres would be required to contain 100.0 g of SO2 gas in a 25.0 L container at a temperature of
100. C?
Ideal Gas– 40 Points
1.91atm
What mass 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?
Ideal Gas– 50 Points
39.1g N2O
If the partial pressures of the three gases in a tank are 35 atm of O2, 15 atm of N2, and 25 atm of He, what is the total pressure
inside of the tank?
Dalton's Law– 10 Points
75atm
If the total air pressure is 0.99atm, the partial pressure of carbon dioxide is 0.17atm, and the partial pressure of hydrogen sulfide is 0.12atm, what is the
partial pressure of the remaining air?
Dalton's Law– 20 Points
0.70atm
What’s the partial pressure of carbon dioxide in a container
that holds 7mol of carbon dioxide, 4mol of nitrogen, and 8mol of oxygen and has a total
pressure of 3.14atm?
Dalton's Law– 30 Points
1.16atm
If I place 3mol N2 and 4mol O2 in a 35L container at a
temperature of 25◦C, what will the pressure of the mixture of
gases be in atm?
Dalton's Law– 40 Points
4.88atm
Two flasks are connected with a stopcock. The first flask has a volume of
7L and contains N2 at a pressure of 1.75atm. The second flask has a volume
of 9L and contains O2 at a pressure of 2.35atm. When the stopcock between the flasks is opened and the gases are free to mix, what will the pressure be in
the mixture?
Dalton's Law– 50 Points
2.09atm
If a gas sample has 32% oxygen at a total pressure of 1.02atm, what is the partial pressure of
oxygen?
Random – 20 Points
.326atm
Name one device that was discussed in class
that can be used to measure pressure.
Random – 30 Points
Barometer or Monometer
What is assumed to be constant in the combined gas
law?
Random – 40 Points
The number of moles of gas.
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