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In Gay-Lussac's law, the pressure of a gas increases due to an increase in temperature because
there is a decrease in the volume of the container.
the molecules strike the walls of the container less often.
the molecules strike the walls of the container more often.
the molecules get bigger.
there is an increase in the number of gas particles.
According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid
a gas is composed of very small particles.
gas particles move rapidly.
gas particles do not attract or repel one another.
the particles of a gas are very far apart.
gas particles move faster when the temperature increases.
A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mm Hg?
1.50 mm Hg
7.5 mm Hg
760 mm Hg
507 mm Hg
1140 mm Hg
Complete the following statement: In Charles' law, the volume of a gas _____ when the _____ decreases.
increases, quantity of gas
A gas sample in a closed, expandable container of initial volume 5.00 L was allowed to warm from 25°C to
35°C. What was its new volume?
According to Avogrado's law,
the volume of a gas is inversely related to the number of moles at standard temperature and
the volume of a gas is inversely related to the number of moles at constant temperature and
the volume of a gas depends only on the number of moles in the sample.
the volume of a gas depends only on the temperature and pressure.
the volume of a gas is directly related to the number of moles at constant temperature and pressure.
A gas at 5.00 atm pressure was stored in a tank during the winter at 5.0°C. During the summer, the
temperature in the storage area reached 40.0°C. What was the pressure in the gas tank then?
A sample of argon at 300.°C and 50.0 atm pressure is cooled in the same container to a temperature of
0.°C. What is the new pressure?
A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740 torr, and a
temperature of 25°C. What was the new volume of the gas when the temperature was changed to 50°C
and the new pressure was 760 torr?
A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the
mixture is 330 mm Hg and the partial pressure of the oxygen is 1.0 atm, what is the total pressure of the
mixture in torr?
Which of the following is NOT a potential use for a hyperbaric chamber?
treatment for burns and infections
treating a diver with the bends
increasing the rate at which a broken bone heals
counteracting carbon monoxide poisoning
treating some cancers
A balloon is filled with helium gas. For the following question(s), select the letter of the balloon diagram that
corresponds to the given change in conditions.
The temperature is changed from 50°C to -150°C at constant pressure.
A and B
B and C
At 570. mm Hg and 25°C, a gas sample has a volume of 2270 mL. What is the final pressure (in mm Hg) at
a volume of 1250 mL and a temperature of 175°C?
690 mm Hg
7000 mm Hg
1560 mm Hg
470 mm Hg
210 mm Hg
At STP conditions, 11 g of SO2 have a volume of
A gas sample contains 4.0 g of CH4 and 2.0 g of He. What is the volume of the sample at STP?
The temperature of a 500. mL sample of gas increases from 150. K to 350. K. What is the final volume of
the sample of gas, if the pressure in the container is kept constant?
The pressure exerted by a gas on its container is directly proportional to
the mass of the individual gas molecules.
the Fahrenheit temperature of the gas.
the centigrade temperature of the gas.
the number of molecules of gas in the sample.
the volume of the container.
The total pressure in a mixture of gases is equal to the partial pressure(s) of
the gas with the highest molecular weight.
the gas with the greatest number of moles.
the gas with the smallest number of moles.
all the gases added together.
the gas that occupies the largest volume.
A gas contained in a steel tank has a pressure of 1.5 atm at a temperature of 320 K. What will be the gas
pressure when the temperature changes to 450 K?
Which of the following is NOT part of the kinetic theory of gases?
Gas particles do not attract or repel one another.
There is very little empty space in a gas.
A gas is composed of very small particles.
Gas particles move rapidly.
Gas particles move faster when the temperature increases.
Which of the following correctly describes the partial pressures of gases in the body?
high O2, high CO2, oxygenated blood
high O2, low CO2, deoxygenated blood
high O2, high CO2, tissue
high O2, low CO2, oxygenated blood
low O2, low CO2, deoxygenated blood
A tank contains helium gas at 490 mm Hg, nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total
pressure in atm?
1.0 x 103 atm
The pressure of 5.0 L of gas increases from 1.50 atm to 1240 mm Hg. What is the final volume of the gas,
assuming constant temperature?
The unit of 1 atmosphere used to describe the pressure of a gas is equal to
760 mm Hg.
200 mm Hg.
600 mm Hg.
100 mm Hg.
1 mm Hg .
At STP, temperature and pressure have the values of
760 K and 273 atm.
273 K and 760 mm Hg.
0 K and 1 atm.
273 K and 1 mm Hg.
0 K and 760 mm Hg.