Question 1

A temperature of 400 K corresponds to a temperature of:

Accepted Answer

A)  200 ° C 
B)  − 73 ° C 
C)  673 ° C 
D)  127 ° C 
A)  200 ° C 
B)  − 73 ° C 
C)  673 ° C 
D)  127 ° C D

Question 2

The SI unit for pressure is:

Accepted Answer

A)  psi 
B)  Pa 
C)  ft-lb 
D)  N 
A)  psi 
B)  Pa 
C)  ft-lb 
D)  N B

Question 3

A pressure of 20.6 kPa corresponds to a pressure reading of:

Accepted Answer

A)  65.2 mm Hg 
B)  111 mm Hg 
C)  97.8 mm Hg 
D)  155 mm Hg 
A)  65.2 mm Hg 
B)  111 mm Hg 
C)  97.8 mm Hg 
D)  155 mm Hg D

Question 4

An unknown volatile liquid is vaporized at 110 ° C and 0.920 atm. If the vaporization gives 271 mL of vapor with a mass of 1.314 g, what is the molar mass of this compound?

Accepted Answer

A)  0.886 g/mol 
B)  1.62 g/mol 
C)  73.9 g/mol 
D)  166 g/mol 
A)  0.886 g/mol 
B)  1.62 g/mol 
C)  73.9 g/mol 
D)  166 g/mol

Question 5

At absolute zero, only monatomic hydrogen maintains some degree of movement.

Accepted Answer

A) True 
 B)False

Question 6

If 3.2 L of CO2 is contained at a pressure of 1.08 atm, the gas will have a pressure of ____ if the volume is increased to 5.1 L at a constant temperature.

Accepted Answer

A)  1.7 atm 
B)  0.68 atm 
C)  1.2 atm 
D)  0.83 atm 
A)  1.7 atm 
B)  0.68 atm 
C)  1.2 atm 
D)  0.83 atm

Question 7

Carbon dioxide gas is collected in a laboratory experiment to determine the molar mass of the compound. At 294 K and 1.01 atm, 1.008 grams of CO2 was collected when a 500 mL flask was filled with the evolved CO2. What is the experimental molar mass of CO2?

Accepted Answer

A)  41.5 g/mol 
B)  44.0 g/mol 
C)  46.9 g/mol 
D)  48.2 g/mol 
A)  41.5 g/mol 
B)  44.0 g/mol 
C)  46.9 g/mol 
D)  48.2 g/mol

Question 8

At constant temperature and volume, 3.8 × 10 − 3 mol of helium is added to a 1.0 L sample of xenon at 0.081 atm and 325 K. What is the total pressure of the gas mix?

Accepted Answer

A)  0.072 atm 
B)  0.18 atm 
C)  0.21 atm 
D)  0.25 atm 
A)  0.072 atm 
B)  0.18 atm 
C)  0.21 atm 
D)  0.25 atm

Question 9

If a deep-sea diver ascends to the surface (1 atm) from a pressure of 5 atm, the volume of the dissolved gas bubbles in the diver's blood will increase by a factor of ____ during the ascent.

Accepted Answer

A)  1 
B)  5 
C)  10 
D)  remain the same 
A)  1 
B)  5 
C)  10 
D)  remain the same

Question 10

A piston is holding 125 mL of gases at a temperature of 300 K and a pressure of 2.39 atm. What is the volume of the gases if the temperature is increased to 500K and the pressure falls to 2.15 atm?

Accepted Answer

A)  125 mL 
B)  139 mL 
C)  208 mL 
D)  231 mL 
A)  125 mL 
B)  139 mL 
C)  208 mL 
D)  231 mL

Question 11

Before heading out onto the lake for a fishing trip, an angler checks the barometer. The pressure reads 29.82 inches of Hg. This corresponds to a pressure in atm of:

Accepted Answer

A)  0.605 atm 
B)  15.6 atm 
C)  311 atm 
D)  0.997 atm 
A)  0.605 atm 
B)  15.6 atm 
C)  311 atm 
D)  0.997 atm

Question 12

A particular pair of human lungs have a volume of 2 L when inflated. At this volume, the temperature inside the lungs is 98.6 ° F. If the temperature of the air outside the lung is 45.0 ° F, what volume of cooler outside air is being inhaled and warmed?

Accepted Answer

A)  0.4 L 
B)  0.9 L 
C)  1.4 L 
D)  1.8 L 
A)  0.4 L 
B)  0.9 L 
C)  1.4 L 
D)  1.8 L

Question 13

If a gas stored in a fixed metal cylinder is heated, the pressure inside the cylinder will:

Accepted Answer

A)  increase 
B)  remain the same 
C)  decrease 
D)  fluctuate about the original mean 
A)  increase 
B)  remain the same 
C)  decrease 
D)  fluctuate about the original mean

Question 14

The collapse of a helium balloon as it leaves the warmth of a florist shop for a sub-zero February morning is best explained by Charles' Law.

Accepted Answer

A) True 
 B)False

Question 15

One of the key components to the Kinetic Molecular Theory is the statement that the average kinetic energy of the particles in a gas is proportional to the absolute temperature of the gas, and does not depend on the identity of the gas.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not a property of a gas?

Accepted Answer

A)  expansion to fill the volume of their container 
B)  densities much lower than solids and liquids 
C)  characteristic odors detected by the human olfactory 
D)  the ability to change volumes with temperature fluctuations 
A)  expansion to fill the volume of their container 
B)  densities much lower than solids and liquids 
C)  characteristic odors detected by the human olfactory 
D)  the ability to change volumes with temperature fluctuations

Question 17

A 2.5 L helium balloon is filled at a florist's shop. If the temperature inside the shop is 68 ° F, what volume will the helium occupy after being left in an automobile at − 5 ° F in the parking lot for the day?

Accepted Answer

A)  1.6 L 
B)  − 0.18 L 
C)  2.1 L 
D)  5.0 L 
A)  1.6 L 
B)  − 0.18 L 
C)  2.1 L 
D)  5.0 L

Question 18

What is the partial pressure of hydrogen in a 100.0 L vessel at 10.0 ° C holding 11.6 g H2, 6.8 g Ar, and 5.3 g of He?

Accepted Answer

A)  1.6 atm 
B)  1.3 atm 
C)  2.4 atm 
D)  5.7 atm 
A)  1.6 atm 
B)  1.3 atm 
C)  2.4 atm 
D)  5.7 atm

Question 19

As the temperature of a gas increases with a constant volume, the pressure of the gas will:

Accepted Answer

A)  increase 
B)  remain the same 
C)  decrease 
D)  fluctuate about the original mean 
A)  increase 
B)  remain the same 
C)  decrease 
D)  fluctuate about the original mean

Question 20

Ozone is created in a series of reactions and events involving photochemically activated nitrogen oxides and:

Accepted Answer

A)  Ar 
B)  H2 
C)  VOCs 
D)  PAHs 
A)  Ar 
B)  H2 
C)  VOCs 
D)  PAHs

A temperature of 400 K corresponds to a temperature of:

The SI unit for pressure is:

A pressure of 20.6 kPa corresponds to a pressure reading of:

An unknown volatile liquid is vaporized at 110 ° C and 0.920 atm. If the vaporization gives 271 mL of vapor with a mass of 1.314 g, what is the molar mass of this compound?

At absolute zero, only monatomic hydrogen maintains some degree of movement.

If 3.2 L of CO₂ is contained at a pressure of 1.08 atm, the gas will have a pressure of ____ if the volume is increased to 5.1 L at a constant temperature.

Carbon dioxide gas is collected in a laboratory experiment to determine the molar mass of the compound. At 294 K and 1.01 atm, 1.008 grams of CO₂ was collected when a 500 mL flask was filled with the evolved CO₂. What is the experimental molar mass of CO₂?

At constant temperature and volume, 3.8 × 10^{− 3} mol of helium is added to a 1.0 L sample of xenon at 0.081 atm and 325 K. What is the total pressure of the gas mix?

If a deep-sea diver ascends to the surface (1 atm) from a pressure of 5 atm, the volume of the dissolved gas bubbles in the diver's blood will increase by a factor of ____ during the ascent.

A piston is holding 125 mL of gases at a temperature of 300 K and a pressure of 2.39 atm. What is the volume of the gases if the temperature is increased to 500K and the pressure falls to 2.15 atm?

Before heading out onto the lake for a fishing trip, an angler checks the barometer. The pressure reads 29.82 inches of Hg. This corresponds to a pressure in atm of:

A particular pair of human lungs have a volume of 2 L when inflated. At this volume, the temperature inside the lungs is 98.6 ° F. If the temperature of the air outside the lung is 45.0 ° F, what volume of cooler outside air is being inhaled and warmed?

If a gas stored in a fixed metal cylinder is heated, the pressure inside the cylinder will:

The collapse of a helium balloon as it leaves the warmth of a florist shop for a sub-zero February morning is best explained by Charles' Law.

One of the key components to the Kinetic Molecular Theory is the statement that the average kinetic energy of the particles in a gas is proportional to the absolute temperature of the gas, and does not depend on the identity of the gas.

Which of the following is not a property of a gas?

A 2.5 L helium balloon is filled at a florist's shop. If the temperature inside the shop is 68 ° F, what volume will the helium occupy after being left in an automobile at − 5 ° F in the parking lot for the day?

What is the partial pressure of hydrogen in a 100.0 L vessel at 10.0 ° C holding 11.6 g H₂, 6.8 g Ar, and 5.3 g of He?

As the temperature of a gas increases with a constant volume, the pressure of the gas will:

Ozone is created in a series of reactions and events involving photochemically activated nitrogen oxides and:

Introduction to Chemistry

Atoms and Molecules

Molecules Moles Chemical Equations

Stoichiometry

The Periodic Table and Atomic Structure

Chemical Bonding and Molecular Structure

Molecules and Materials

Energy and Chemistry

Entropy and the Second Law of Thermodynamics

Chemical Kinetics

Chemical Equilibrium

Electrochemistry

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Exam 5: Gases

A temperature of 400 K corresponds to a temperature of:

The SI unit for pressure is:

A pressure of 20.6 kPa corresponds to a pressure reading of:

An unknown volatile liquid is vaporized at 110 ° C and 0.920 atm. If the vaporization gives 271 mL of vapor with a mass of 1.314 g, what is the molar mass of this compound?

At absolute zero, only monatomic hydrogen maintains some degree of movement.

If 3.2 L of CO2 is contained at a pressure of 1.08 atm, the gas will have a pressure of ____ if the volume is increased to 5.1 L at a constant temperature.

Carbon dioxide gas is collected in a laboratory experiment to determine the molar mass of the compound. At 294 K and 1.01 atm, 1.008 grams of CO2 was collected when a 500 mL flask was filled with the evolved CO2. What is the experimental molar mass of CO2?

At constant temperature and volume, 3.8 × 10 − 3 mol of helium is added to a 1.0 L sample of xenon at 0.081 atm and 325 K. What is the total pressure of the gas mix?

If a deep-sea diver ascends to the surface (1 atm) from a pressure of 5 atm, the volume of the dissolved gas bubbles in the diver's blood will increase by a factor of ____ during the ascent.

A piston is holding 125 mL of gases at a temperature of 300 K and a pressure of 2.39 atm. What is the volume of the gases if the temperature is increased to 500K and the pressure falls to 2.15 atm?

Before heading out onto the lake for a fishing trip, an angler checks the barometer. The pressure reads 29.82 inches of Hg. This corresponds to a pressure in atm of:

A particular pair of human lungs have a volume of 2 L when inflated. At this volume, the temperature inside the lungs is 98.6 ° F. If the temperature of the air outside the lung is 45.0 ° F, what volume of cooler outside air is being inhaled and warmed?

If a gas stored in a fixed metal cylinder is heated, the pressure inside the cylinder will:

The collapse of a helium balloon as it leaves the warmth of a florist shop for a sub-zero February morning is best explained by Charles' Law.

One of the key components to the Kinetic Molecular Theory is the statement that the average kinetic energy of the particles in a gas is proportional to the absolute temperature of the gas, and does not depend on the identity of the gas.

Which of the following is not a property of a gas?

A 2.5 L helium balloon is filled at a florist's shop. If the temperature inside the shop is 68 ° F, what volume will the helium occupy after being left in an automobile at − 5 ° F in the parking lot for the day?

What is the partial pressure of hydrogen in a 100.0 L vessel at 10.0 ° C holding 11.6 g H2, 6.8 g Ar, and 5.3 g of He?

As the temperature of a gas increases with a constant volume, the pressure of the gas will:

Ozone is created in a series of reactions and events involving photochemically activated nitrogen oxides and:

Introduction to Chemistry

Atoms and Molecules

Molecules Moles Chemical Equations

Stoichiometry

The Periodic Table and Atomic Structure

Chemical Bonding and Molecular Structure

Molecules and Materials

Energy and Chemistry

Entropy and the Second Law of Thermodynamics

Chemical Kinetics

Chemical Equilibrium

Electrochemistry

Filters

If 3.2 L of CO₂ is contained at a pressure of 1.08 atm, the gas will have a pressure of ____ if the volume is increased to 5.1 L at a constant temperature.

Carbon dioxide gas is collected in a laboratory experiment to determine the molar mass of the compound. At 294 K and 1.01 atm, 1.008 grams of CO₂ was collected when a 500 mL flask was filled with the evolved CO₂. What is the experimental molar mass of CO₂?

At constant temperature and volume, 3.8 × 10^{− 3} mol of helium is added to a 1.0 L sample of xenon at 0.081 atm and 325 K. What is the total pressure of the gas mix?

What is the partial pressure of hydrogen in a 100.0 L vessel at 10.0 ° C holding 11.6 g H₂, 6.8 g Ar, and 5.3 g of He?