Question 1

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

Accepted Answer

A) True 
 B)False

Question 2

Nitrogen makes up about ________ percent of the atmosphere.

Accepted Answer

The answer of Nitrogen makes up about ________ percent of...

Question 3

At 570.mmHg and 25 °C,a gas sample has a volume of 2270 mL.What is the final pressure (in mmHg)at a volume of 1250 mL and a temperature of 175 °C,if the amount of gas does not change?

Accepted Answer

A) 1560 mmHg 
B) 210 mmHg 
C) 7000 mmHg 
D) 690 mmHg 
E) 470 mmHg 
A) 1560 mmHg 
B) 210 mmHg 
C) 7000 mmHg 
D) 690 mmHg 
E) 470 mmHg

Question 4

A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?

Accepted Answer

The answer of A gas has a pressure of 540.torr...

Question 5

In Gay-Lussac's law,the pressure of a gas increases due to an increase in temperature because ________.

Accepted Answer

A) the molecules strike the walls of the container less often 
B) the molecules strike the walls of the container more often 
C) the molecules get bigger 
D) there is a decrease in the volume of the container 
E) there is an increase in the number of gas particles 
A) the molecules strike the walls of the container less often 
B) the molecules strike the walls of the container more often 
C) the molecules get bigger 
D) there is a decrease in the volume of the container 
E) there is an increase in the number of gas particles

Question 6

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

Question 7

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,if the amount of gas does not change?

Accepted Answer

A) 530 mL 
B) 450 mL 
C) 970 mL 
D) 240 mL 
E) 400 mL 
A) 530 mL 
B) 450 mL 
C) 970 mL 
D) 240 mL 
E) 400 mL

Question 8

According to the kinetic molecular theory of gases,a gas can be compressed much more than a liquid or solid because ________.

Accepted Answer

A) a gas is composed of very small particles 
B) the particles of a gas are very far apart 
C) gas particles move rapidly 
D) gas particles do not attract or repel one another 
E) gas particles move faster when the temperature increases 
A) a gas is composed of very small particles 
B) the particles of a gas are very far apart 
C) gas particles move rapidly 
D) gas particles do not attract or repel one another 
E) gas particles move faster when the temperature increases

Question 9

The volume decreases as the temperature increases,if pressure and amount of gas do not change.

Accepted Answer

A) True 
 B)False

Question 10

Which measurement describes the pressure of a gas?

Accepted Answer

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

Question 11

At constant temperature,a sample of helium at 760.torr in a closed container was compressed from 5.00 L to 3.00 L.What was the new pressure exerted by the helium on its container?

Accepted Answer

A) 800.torr 
B) 2280 torr 
C) 15.0 torr 
D) 3800 torr 
E) 1270 torr 
A) 800.torr 
B) 2280 torr 
C) 15.0 torr 
D) 3800 torr 
E) 1270 torr

Question 12

According to Avogadro's law,________.

Accepted Answer

A) the volume of a gas is inversely related to the number of moles at constant temperature and pressure 
B) the volume of a gas is inversely related to the number of moles at standard temperature and pressure 
C) the volume of a gas depends only on the temperature and pressure 
D) the volume of a gas depends only on the number of moles in the sample 
E) the volume of a gas is directly related to the number of moles at constant temperature and pressure 
A) the volume of a gas is inversely related to the number of moles at constant temperature and pressure 
B) the volume of a gas is inversely related to the number of moles at standard temperature and pressure 
C) the volume of a gas depends only on the temperature and pressure 
D) the volume of a gas depends only on the number of moles in the sample 
E) the volume of a gas is directly related to the number of moles at constant temperature and pressure

Question 13

The total pressure of a mixture of CO2 and O2 is 780 mmHg.If the pressure of the CO2 is 560.torr,what is the pressure of O2?

Accepted Answer

The answer of The total pressure of a mixture of...

Question 14

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 balloon is put into a chamber where the pressure is less than the atmospheric pressure.

Accepted Answer

A) A 
B) B 
C) C 
D) A and B 
E) B and C 
A) A 
B) B 
C) C 
D) A and B 
E) B and C

Question 15

The force of gas particles against the walls of a container is called ________.

Accepted Answer

A) pressure 
B) volume 
C) temperature 
D) quantity of gas 
E) density 
A) pressure 
B) volume 
C) temperature 
D) quantity of gas 
E) density

Question 16

A barometer is usually filled with ________.

Accepted Answer

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

Question 17

At STP,what is the volume of 4.50 moles of nitrogen gas?

Accepted Answer

A) 167 L 
B) 3420 L 
C) 101 L 
D) 60.7 L 
E) 1230 L 
A) 167 L 
B) 3420 L 
C) 101 L 
D) 60.7 L 
E) 1230 L

Question 18

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,if the volume and amount of gas do not change?

Accepted Answer

A) 105 atm 
B) 45.5 atm 
C) 54.9 atm 
D) 23.8 atm 
E) 42.7 atm 
A) 105 atm 
B) 45.5 atm 
C) 54.9 atm 
D) 23.8 atm 
E) 42.7 atm

Question 19

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.

Accepted Answer

A) A 
B) B 
C) C 
D) A and B 
E) B and C 
A) A 
B) B 
C) C 
D) A and B 
E) B and C

Question 20

A gas has a volume of 46.0 L when the temperature is 400.K.When the temperature changes to 500.K,what is the new volume,if there is no change in pressure or amount of gas?

Accepted Answer

The answer of A gas has a volume of 46.0...

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

Nitrogen makes up about ________ percent of the atmosphere.

At 570.mmHg and 25 °C,a gas sample has a volume of 2270 mL.What is the final pressure (in mmHg)at a volume of 1250 mL and a temperature of 175 °C,if the amount of gas does not change?

A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?

In Gay-Lussac's law,the pressure of a gas increases due to an increase in temperature because ________.

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

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,if the amount of gas does not change?

According to the kinetic molecular theory of gases,a gas can be compressed much more than a liquid or solid because ________.

The volume decreases as the temperature increases,if pressure and amount of gas do not change.

Which measurement describes the pressure of a gas?

At constant temperature,a sample of helium at 760.torr in a closed container was compressed from 5.00 L to 3.00 L.What was the new pressure exerted by the helium on its container?

According to Avogadro's law,________.

The total pressure of a mixture of CO2 and O2 is 780 mmHg.If the pressure of the CO2 is 560.torr,what is the pressure of O2?

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 balloon is put into a chamber where the pressure is less than the atmospheric pressure.

The force of gas particles against the walls of a container is called ________.

A barometer is usually filled with ________.

At STP,what is the volume of 4.50 moles of nitrogen gas?

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,if the volume and amount of gas do not change?

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 gas has a volume of 46.0 L when the temperature is 400.K.When the temperature changes to 500.K,what is the new volume,if there is no change in pressure or amount of gas?

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Exam 8: Gases

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

Nitrogen makes up about ________ percent of the atmosphere.

At 570.mmHg and 25 °C,a gas sample has a volume of 2270 mL.What is the final pressure (in mmHg)at a volume of 1250 mL and a temperature of 175 °C,if the amount of gas does not change?

A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?

In Gay-Lussac's law,the pressure of a gas increases due to an increase in temperature because ________.

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

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,if the amount of gas does not change?

According to the kinetic molecular theory of gases,a gas can be compressed much more than a liquid or solid because ________.

The volume decreases as the temperature increases,if pressure and amount of gas do not change.

Which measurement describes the pressure of a gas?

At constant temperature,a sample of helium at 760.torr in a closed container was compressed from 5.00 L to 3.00 L.What was the new pressure exerted by the helium on its container?

According to Avogadro's law,________.

The total pressure of a mixture of CO2 and O2 is 780 mmHg.If the pressure of the CO2 is 560.torr,what is the pressure of O2?

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 balloon is put into a chamber where the pressure is less than the atmospheric pressure.

The force of gas particles against the walls of a container is called ________.

A barometer is usually filled with ________.

At STP,what is the volume of 4.50 moles of nitrogen gas?

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,if the volume and amount of gas do not change?

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 gas has a volume of 46.0 L when the temperature is 400.K.When the temperature changes to 500.K,what is the new volume,if there is no change in pressure or amount of gas?

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters

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