Question 1

What is the temperature (°C)of 2.48 moles of gas stored in a   container at   ? 
(R= 0.0821 L atm/ mol K)

Accepted Answer

A) 302 
B) 189 
C) 29 
D) -84 
E) none of the above 
A) 302 
B) 189 
C) 29 
D) -84 
E) none of the above C

Question 2

Gases fill the entire volume of their container.

Accepted Answer

A) True 
 B)False  True

Question 3

Which conditions can cause nonideal gas behavior by 1)decreasing the space between gas particles or 2)by slowing gas particles so that interactions are significant?

Accepted Answer

A) 1)high pressure; 2)high temperature 
B) 1)high pressure; 2)low temperature 
C) 1)low pressure; 2)high temperature 
D) 1)low pressure; 2)low temperature 
E) none of the above 
A) 1)high pressure; 2)high temperature 
B) 1)high pressure; 2)low temperature 
C) 1)low pressure; 2)high temperature 
D) 1)low pressure; 2)low temperature 
E) none of the above B

Question 4

To solve problems using Charles's Law,which mathematical equation should be used?

Accepted Answer

A)    =   
B)      =     
C)    =   
D)      =     
E) none of the above 
A)    =   
B)      =     
C)    =   
D)      =     
E) none of the above

Question 5

Which of the following gas law relationships is true?

Accepted Answer

A) V α 1/P 
B) V α T 
C) V α n 
D) all of the above are true 
E) none of the above are true 
A) V α 1/P 
B) V α T 
C) V α n 
D) all of the above are true 
E) none of the above are true

Question 6

Boyle's law states that as the volume of a gas increases so does the pressure.

Accepted Answer

A) True 
 B)False

Question 7

What is the volume of 28.0 g of nitrogen gas at STP?

Accepted Answer

A) 33.6 L 
B) 11.2 L 
C) 22.4 L 
D) 44.8 L 
E) none of the above 
A) 33.6 L 
B) 11.2 L 
C) 22.4 L 
D) 44.8 L 
E) none of the above

Question 8

Boyle's Law is expressed as:

Accepted Answer

A) V is proportional to   
B) P is proportional to V 
C) V is proportional to   
D) V is proportional to T 
E) none of the above 
A) V is proportional to   
B) P is proportional to V 
C) V is proportional to   
D) V is proportional to T 
E) none of the above

Question 9

Human lungs have evolved to breathe oxygen at a pressure as that in the atmosphere,0.21 atm.If a particular heliox mixture to be carried by a scuba diver is at a pressure of 7.00 atm,what should be the partial pressure due to helium in order to maintain the pressure due to oxygen at 0.21 atm?

Accepted Answer

A) 0.21 atm 
B) 7.00 atm 
C) 6.79 atm 
D) 7.21 atm 
E) none of the above 
A) 0.21 atm 
B) 7.00 atm 
C) 6.79 atm 
D) 7.21 atm 
E) none of the above

Question 10

Water can be formed according to the equation: 
2H2 (g)+ O2 (g)→ 2H2O (g)
If 8.0 L of hydrogen is reacted at STP,exactly how many liters of oxygen at STP would be needed to allow complete reaction?

Accepted Answer

A) 4.0 L 
B) 2.0 L 
C) 1.0 L 
D) 8.0 L 
E) none of the above 
A) 4.0 L 
B) 2.0 L 
C) 1.0 L 
D) 8.0 L 
E) none of the above

Question 11

A certain volume of gas was confined in a rigid container.If the pressure of the gas sample in the container was doubled,what happened to the temperature?

Accepted Answer

A) The Kelvin temperature decreased by one-half. 
B) The Kelvin temperature doubled. 
C) The Kelvin temperature increased four times. 
D) The Kelvin temperature decreased one-third. 
E) not enough information 
A) The Kelvin temperature decreased by one-half. 
B) The Kelvin temperature doubled. 
C) The Kelvin temperature increased four times. 
D) The Kelvin temperature decreased one-third. 
E) not enough information

Question 12

What is the pressure of 760 mm Hg when expressed in units of in Hg?

Accepted Answer

A) 29.92 in Hg 
B) 101,325 in Hg 
C) 760 in Hg 
D) 1 in Hg 
E) none of the above 
A) 29.92 in Hg 
B) 101,325 in Hg 
C) 760 in Hg 
D) 1 in Hg 
E) none of the above

Question 13

A 22.4 liter sample of gas at standard temperature and pressure conditions contains 1 mole of gas particles.

Accepted Answer

A) True 
 B)False

Question 14

A "shielding gas" mixture of argon and carbon dioxide is sometimes used in welding to improve the strength of the weld.If a gas cylinder of this two-part mixture was at 4.0 atm pressure and this mixture was 90.% argon,what would be the pressure due to the carbon dioxide gas component?

Accepted Answer

A) 3.6 atm 
B) 0.40 atm 
C) 10.atm 
D) 4.0 atm 
E) none of the above 
A) 3.6 atm 
B) 0.40 atm 
C) 10.atm 
D) 4.0 atm 
E) none of the above

Question 15

Pressure is calculated by: P =   .

Accepted Answer

A) True 
 B)False

Question 16

What problem could happen if deep sea divers used pure oxygen in their tanks?

Accepted Answer

A) hypoxia 
B) oxygen toxicity 
C) nitrogen narcosis 
D) rapture of oxygen 
E) none of the above 
A) hypoxia 
B) oxygen toxicity 
C) nitrogen narcosis 
D) rapture of oxygen 
E) none of the above

Question 17

If the number of gas particles is halved,the volume of the gas will be halved given that the temperature and pressure do not change.

Accepted Answer

A) True 
 B)False

Question 18

Which of following statements are consistent with the Kinetic Molecular Theory?

Accepted Answer

A) Gases are compressible because the volume taken up by the gas is almost entirely open space. 
B) Gases assume the shape and volume of their container because they are in constant,straight-line motion. 
C) Gases have a low density because there is so much empty space between the particles. 
D) Gas particles collide with each other and surfaces without losing any energy. 
E) All of the above statements are consistent with the Kinetic Molecular Theory. 
A) Gases are compressible because the volume taken up by the gas is almost entirely open space. 
B) Gases assume the shape and volume of their container because they are in constant,straight-line motion. 
C) Gases have a low density because there is so much empty space between the particles. 
D) Gas particles collide with each other and surfaces without losing any energy. 
E) All of the above statements are consistent with the Kinetic Molecular Theory.

Question 19

What is the change in temperature of a 2.50 L system when its volume is reduced to   if the initial temperature was

Accepted Answer

A) 209 K 
B) 290 K 
C) -89 K 
D) -98 K 
E) none of the above 
A) 209 K 
B) 290 K 
C) -89 K 
D) -98 K 
E) none of the above

Question 20

How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of   given that the final volume was   ?

Accepted Answer

A) 9.5 
B) 4.4 
C) 12 
D) 0.085 
E) none of the above 
A) 9.5 
B) 4.4 
C) 12 
D) 0.085 
E) none of the above

What is the temperature (°C)of 2.48 moles of gas stored in a container at ? (R= 0.0821 L atm/ mol K)

Gases fill the entire volume of their container.

Which conditions can cause nonideal gas behavior by 1)decreasing the space between gas particles or 2)by slowing gas particles so that interactions are significant?

To solve problems using Charles's Law,which mathematical equation should be used?

Which of the following gas law relationships is true?

Boyle's law states that as the volume of a gas increases so does the pressure.

What is the volume of 28.0 g of nitrogen gas at STP?

Boyle's Law is expressed as:

Human lungs have evolved to breathe oxygen at a pressure as that in the atmosphere,0.21 atm.If a particular heliox mixture to be carried by a scuba diver is at a pressure of 7.00 atm,what should be the partial pressure due to helium in order to maintain the pressure due to oxygen at 0.21 atm?

Water can be formed according to the equation: 2H₂(g)+ O₂ (g)→ 2H₂O (g) If 8.0 L of hydrogen is reacted at STP,exactly how many liters of oxygen at STP would be needed to allow complete reaction?

A certain volume of gas was confined in a rigid container.If the pressure of the gas sample in the container was doubled,what happened to the temperature?

What is the pressure of 760 mm Hg when expressed in units of in Hg?

A 22.4 liter sample of gas at standard temperature and pressure conditions contains 1 mole of gas particles.

A "shielding gas" mixture of argon and carbon dioxide is sometimes used in welding to improve the strength of the weld.If a gas cylinder of this two-part mixture was at 4.0 atm pressure and this mixture was 90.% argon,what would be the pressure due to the carbon dioxide gas component?

Pressure is calculated by: P = .

What problem could happen if deep sea divers used pure oxygen in their tanks?

If the number of gas particles is halved,the volume of the gas will be halved given that the temperature and pressure do not change.

Which of following statements are consistent with the Kinetic Molecular Theory?

What is the change in temperature of a 2.50 L system when its volume is reduced to if the initial temperature was

How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of given that the final volume was ?

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Exam 11: Gases

What is the temperature (°C)of 2.48 moles of gas stored in a container at ? (R= 0.0821 L atm/ mol K)

Gases fill the entire volume of their container.

Which conditions can cause nonideal gas behavior by 1)decreasing the space between gas particles or 2)by slowing gas particles so that interactions are significant?

To solve problems using Charles's Law,which mathematical equation should be used?

Which of the following gas law relationships is true?

Boyle's law states that as the volume of a gas increases so does the pressure.

What is the volume of 28.0 g of nitrogen gas at STP?

Boyle's Law is expressed as:

Human lungs have evolved to breathe oxygen at a pressure as that in the atmosphere,0.21 atm.If a particular heliox mixture to be carried by a scuba diver is at a pressure of 7.00 atm,what should be the partial pressure due to helium in order to maintain the pressure due to oxygen at 0.21 atm?

Water can be formed according to the equation: 2H2 (g)+ O2 (g)→ 2H2O (g) If 8.0 L of hydrogen is reacted at STP,exactly how many liters of oxygen at STP would be needed to allow complete reaction?

A certain volume of gas was confined in a rigid container.If the pressure of the gas sample in the container was doubled,what happened to the temperature?

What is the pressure of 760 mm Hg when expressed in units of in Hg?

A 22.4 liter sample of gas at standard temperature and pressure conditions contains 1 mole of gas particles.

A "shielding gas" mixture of argon and carbon dioxide is sometimes used in welding to improve the strength of the weld.If a gas cylinder of this two-part mixture was at 4.0 atm pressure and this mixture was 90.% argon,what would be the pressure due to the carbon dioxide gas component?

Pressure is calculated by: P = .

What problem could happen if deep sea divers used pure oxygen in their tanks?

If the number of gas particles is halved,the volume of the gas will be halved given that the temperature and pressure do not change.

Which of following statements are consistent with the Kinetic Molecular Theory?

What is the change in temperature of a 2.50 L system when its volume is reduced to if the initial temperature was

How many moles of gas were added to a balloon that started with 2.3 moles of gas and a volume of given that the final volume was ?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Water can be formed according to the equation: 2H₂(g)+ O₂ (g)→ 2H₂O (g) If 8.0 L of hydrogen is reacted at STP,exactly how many liters of oxygen at STP would be needed to allow complete reaction?