Question 1

A gas at  5.00  atm pressure was stored in a tank during the winter at  During the summer, the temperature in the storage area reached  What was the pressure in the gas tank then, if volume and amount of gas do not change?

Accepted Answer

A)    69.5 atm
B)    5.63 atm 
C)    40.0 atm
D)    0.625 atm
E)    4.44 atmF) B) and D)
G) B) and C)

Question 2

At constant temperature, a sample of helium at 760. torr in a closed container was compressed from 5.00 L to 3.00 L, with no change in amount of gas or temperature. What was the new pressure exerted by the helium on
Its container?

Accepted Answer

A)  15.0 torr
B)  2280 torr
C)  800. torr
D)  3820 torr
E)  1270 torrF) C) and D)
G) None of the above

Question 3

Gay-Lussac's law is usually written as ________.

Accepted Answer

The answer of Gay-Lussac's law is usually written as ________....

Question 4

At STP, temperature and pressure have the values of

Accepted Answer

A)  0 K and 1 atm.
B)  760 K and 273 atm.
C)  0 K and 760 mmHg.
D)  273 K and 1 mmHg.
E)  273 K and 760 mmHg.F) B) and C)
G) C) and D)

Question 5

The total pressure in a mixture of gases is equal to the partial pressure(s) of

Accepted Answer

A)  all the gases added together.
B)  the gas with the highest molecular weight.
C)  the gas with the smallest number of moles.
D)  the gas with the greatest number of moles.
E)  the gas that occupies the largest volume.F) C) and D)
G) B) and E)

Question 6

A tank contains helium gas at  490 mmHg , nitrogen gas at  0.75 atm, and neon at 520 torr. What is the total pressure in atm?

Accepted Answer

A)    0.55 atm
B)   
C)    1.5 atm
D)    2.1 atm
E)    1600 atmF) A) and B)
G) A) and E)

Question 7

A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?

Accepted Answer

A)  760. mmHg
B)  7.50 mmHg
C)  1.50 mmHg
D)  507 mmHg
E)  1140 mmHgF) A) and B)
G) A) and C)

Question 8

A sample of nitrogen gas had a volume of  500 .mL, a pressure in its closed container of 740 torr, and a temperature of  What was the new volume of the gas when the temperature was changed to  and the new pressure was 760 torr, if the amount of gas does not change?

Accepted Answer

A)    400 mL
B)    240 mL
C)    450 mL
D)    970 mL
E)    530 mLF) None of the above
G) B) and D)

Question 9

The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming no change in amount of gas or temperature?

Accepted Answer

A)  0.30 atm
B)  4.8 atm
C)  1.0 atm
D)  1.2 atm
E)  3.3 atmF) B) and D)
G) B) and C)

Question 10

How many moles of neon occupy a volume of 14.3 L at STP?

Accepted Answer

A)  32.0 moles
B)  6.45 moles
C)  1.57 moles
D)  36.7 moles
E)  0.638 molesF) A) and D)
G) A) and E)

Question 11

As you rise higher in Earth's atmosphere, the atmospheric pressure

Accepted Answer

A)  decreases.
B)  increases.
C)  remains the same.D) A) and B)
E) All of the above

Question 12

Atmospheric pressure on a rainy day is usually ________ air pressure on a sunny day.

Accepted Answer

A)  higher than
B)  lower than
C)  the same asD) A) and B)
E) A) and C)

Question 13

Which measurement describes the pressure of a gas?

Accepted Answer

A)  725 mmHg
B)  1.2 g/L
C)  2.5 L
D)  0.45 moles
E)  315 KF) C) and D)
G) C) and E)

Question 14

According to the kinetic theory of gases, particles of a gas

Accepted Answer

A)  move slowly.
B)  are very large.
C)  decrease kinetic energy as temperature increases.
D)  are very far apart.
E)  lose their valence electrons.F) C) and D)
G) D) and E)

Question 15

According to Avogadro's law,

Accepted Answer

A)  the volume of a gas depends only on the number of moles in the sample.
B)  the volume of a gas is directly related to the number of moles at constant temperature and pressure.
C)  the volume of a gas is inversely related to the number of moles at standard temperature and pressure.
D)  the volume of a gas is inversely related to the number of moles at constant temperature and pressure.
E)  the volume of a gas depends only on the temperature and pressure.F) A) and E)
G) None of the above

Question 16

A barometer is usually filled with ________.

Accepted Answer

The answer of A barometer is usually filled with ________....

Question 17

A gas sample contains 4.0 g of CH4 and 2.0 g of He. What is the volume of the sample at STP?

Accepted Answer

A)  130 L
B)  17 L
C)  5.6 L
D)  30. L
E)  11 LF) C) and E)
G) B) and D)

Question 18

According to the kinetic molecular theory of gas behavior, particles of a gas tend to move ________ in ________.

Accepted Answer

A)  rapidly; straight paths
B)  slowly; curve paths
C)  slowly; straight paths
D)  rapidly; curved pathsE) A) and B)
F) A) and C)

Question 19

A sample of argon gas at  and  50.0  atm pressure is cooled in the same container to a temperature of   What is the new pressure, if volume and amount of gas do not change?

Accepted Answer

A)    105 atm
B)    42.7 atm
C)    45.5 atm
D)    54.9 atm
E)    23.8 atmF) All of the above
G) A) and B)

Question 20

The unit of 1 atmosphere used to describe the pressure of a gas is equal to

Accepted Answer

A)  200 mmHg.
B)  1 mmHg .
C)  100 mmHg.
D)  760 mmHg.
E)  600 mmHg.F) A) and B)
G) A) and C)

Exam 8: Gases

A gas at 5.00 atm pressure was stored in a tank during the winter at During the summer, the temperature in the storage area reached What was the pressure in the gas tank then, if volume and amount of gas do not change?

Correct AnswerverifiedShow Answer

How many moles of neon occupy a volume of 14.3 L at STP?

Correct AnswerverifiedShow Answer

A sample of argon gas at and 50.0 atm pressure is cooled in the same container to a temperature of What is the new pressure, if volume and amount of gas do not change?

Correct AnswerverifiedShow Answer

A tank contains helium gas at 490 mmHg , nitrogen gas at 0.75 atm, and neon at 520 torr. What is the total pressure in atm?

Correct AnswerverifiedShow Answer

According to the kinetic molecular theory of gas behavior, particles of a gas tend to move ________ in ________.

Correct AnswerverifiedShow Answer

At STP, temperature and pressure have the values of

Correct AnswerverifiedShow Answer

According to Avogadro's law,

Correct AnswerverifiedShow Answer

The unit of 1 atmosphere used to describe the pressure of a gas is equal to

Correct AnswerverifiedShow Answer

A gas sample contains 4.0 g of CH4 and 2.0 g of He. What is the volume of the sample at STP?

Correct AnswerverifiedShow Answer

The volume of a gas with a pressure of 1.2 atm increases from 1.0 L to 4.0 L. What is the final pressure of the gas, assuming no change in amount of gas or temperature?

Correct AnswerverifiedShow Answer

Atmospheric pressure on a rainy day is usually ________ air pressure on a sunny day.

Correct AnswerverifiedShow Answer

The total pressure in a mixture of gases is equal to the partial pressure(s) of

Correct AnswerverifiedShow Answer

Gay-Lussac's law is usually written as ________.

Correct AnswerverifiedShow Answer

A sample of nitrogen gas had a volume of 500 .mL, a pressure in its closed container of 740 torr, and a temperature of What was the new volume of the gas when the temperature was changed to and the new pressure was 760 torr, if the amount of gas does not change?

Correct AnswerverifiedShow Answer

As you rise higher in Earth's atmosphere, the atmospheric pressure

Correct AnswerverifiedShow Answer

A 5.00-L tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?

Correct AnswerverifiedShow Answer

A barometer is usually filled with ________.

Correct AnswerverifiedShow Answer

Which measurement describes the pressure of a gas?

Correct AnswerverifiedShow Answer

According to the kinetic theory of gases, particles of a gas

Correct AnswerverifiedShow Answer

At constant temperature, a sample of helium at 760. torr in a closed container was compressed from 5.00 L to 3.00 L, with no change in amount of gas or temperature. What was the new pressure exerted by the helium on Its container?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

According to the kinetic molecular theory of gas behavior, particles of a gas tend to move in .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified