Question 1

The isotherm that corresponds to the highest temperature is the one labeled

Accepted Answer

A)  T1  
B)  T2  
C)  T3  
D)  The isotherms correspond to the same temperature 
E)  none of these is correct 
A)  T1  
B)  T2  
C)  T3  
D)  The isotherms correspond to the same temperature 
E)  none of these is correct

Question 2

When the temperature of an ideal gas is increased from 300 K to 400 K, the average kinetic energy of the gas molecules increases by a factor of

Accepted Answer

A)  1.15 
B)  1.33 
C)  1.54 
D)  1.78 
E)  2.47 
A)  1.15 
B)  1.33 
C)  1.54 
D)  1.78 
E)  2.47

Question 3

Two monoatomic gases, helium and neon, are mixed in the ratio of 2 to 1 and are in thermal equilibrium at temperature T (the molar mass of helium = 4.0 g/mol and the molar mass of neon = 20.2 g/mol). If the average kinetic energy of each helium atom is 6.3 $\times$ 10-21 J, calculate the temperature T.

Accepted Answer

A)  304 K 
B)  456 K 
C)  31 K 
D)  31S1U1P1$\circ$S1S1P0C 
E)  101 K 
A)  304 K 
B)  456 K 
C)  31 K 
D)  31S1U1P1$\circ$S1S1P0C 
E)  101 K

Question 4

If it is known that two bodies are in thermal equilibrium, one can conclude that

Accepted Answer

A)  they must be in thermal equilibrium with a third body. 
B)  there must be a net heat flow between them. 
C)  the bodies must be at different temperatures. 
D)  some shared physical property must be changing. 
E)  they must be at the same temperature. 
A)  they must be in thermal equilibrium with a third body. 
B)  there must be a net heat flow between them. 
C)  the bodies must be at different temperatures. 
D)  some shared physical property must be changing. 
E)  they must be at the same temperature.

Question 5

If a mass of oxygen gas occupies a volume of 8 L at standard temperature and pressure, what is the change in the volume if the temperature is decreased to 136 K and the pressure remains constant?

Accepted Answer

A)  It increases to 16 L. 
B)  It decreases to 12 L. 
C)  It increases to 24 L. 
D)  It decreases to 4 L. 
E)  It increases to 12 L. 
A)  It increases to 16 L. 
B)  It decreases to 12 L. 
C)  It increases to 24 L. 
D)  It decreases to 4 L. 
E)  It increases to 12 L.

Question 6

The highest and lowest temperatures ever recorded in the United States are 134ºF (California, 1913) and -80ºF (Alaska, 1971). What are these temperatures in kelvins?

Accepted Answer

A)  407 K and 193 K 
B)  330 K and 211 K 
C)  347 K and 228 K 
D)  340 K and 300 K 
E)  365 K and 246 K 
A)  407 K and 193 K 
B)  330 K and 211 K 
C)  347 K and 228 K 
D)  340 K and 300 K 
E)  365 K and 246 K

Question 7

The temperature of the air on a hot day when the temperature is 108ºF is

Accepted Answer

A)  10ºC 
B)  110ºC 
C)  32 K 
D)  315 K 
E)  420 K 
A)  10ºC 
B)  110ºC 
C)  32 K 
D)  315 K 
E)  420 K

Question 8

A temperature of 14ºF is equivalent to

Accepted Answer

A)  -10ºC 
B)  7.77ºC 
C)  25.5ºC 
D)  26.7ºC 
E)  47.7ºC 
A)  -10ºC 
B)  7.77ºC 
C)  25.5ºC 
D)  26.7ºC 
E)  47.7ºC

Question 9

Two tanks, both of volume 10 L, are connected by a valve and are thermally isolated. One tank contains 1mole of 4He at 280 K and the other tank contains 1 mole O2 at 300 K. The valve is then opened and the gases allowed to mix. What is the final temperature after the gases have come to equilibrium?

Accepted Answer

A)  290 K 
B)  295 K 
C)  285 K 
D)  293 K 
E)  287 K 
A)  290 K 
B)  295 K 
C)  285 K 
D)  293 K 
E)  287 K

Question 10

A device used to measure the speed, v, of molecules is shown below. When the cylinder is rotated, only molecules that are of the right speed will pass through the slanted slot and be pickup by the detector. Drive an expression for the speed v in terms of the angular speed, $\omega$, $\phi$, and L. L is the length of the cylinder and $\phi$ is the angle subtended by the slanted slot.

Accepted Answer

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

Question 11

The graph shows the Maxwell-Boltzmann distribution function of the number of gas molecules per unit speed range at a given temperature. The average speed, the most probable speed, and the rms speed (in this order) are most likely given by

Accepted Answer

A)  x, y, z 
B)  z, x, y 
C)  y, z, x 
D)  y, x, z 
E)  z, y, x 
A)  x, y, z 
B)  z, x, y 
C)  y, z, x 
D)  y, x, z 
E)  z, y, x

Question 12

A 1 L container contains O2 gas at STP. If the diameter of the O2 molecule is 3.75 $\times$ 10 -10 m, the number of collisions per second is

Accepted Answer

A)  6.7 $\times$ 109 
B)  6.1 $\times$ 109 
C)  8.1 $\times$ 109 
D)  7.1 $\times$ 109 
E)  1.0 $\times$ 1010 
A)  6.7 $\times$ 109 
B)  6.1 $\times$ 109 
C)  8.1 $\times$ 109 
D)  7.1 $\times$ 109 
E)  1.0 $\times$ 1010

Question 13

In a Maxwell-Boltzmann distribution function of molecular speeds, the rms speed is

Accepted Answer

A)  always greater than the mean speed. 
B)  always less than the mean speed. 
C)  equal to the mean speed. 
D)  equal to the most probable speed. 
E)  independent of the temperature. 
A)  always greater than the mean speed. 
B)  always less than the mean speed. 
C)  equal to the mean speed. 
D)  equal to the most probable speed. 
E)  independent of the temperature.

Question 14

Doubling the Kelvin temperature of a gas increases which of the following measures of its molecular velocity by a factor of 1.4?

Accepted Answer

A)  the rms speed 
B)  the average speed 
C)  the most probable speed 
D)  All three of these speeds are correct. 
E)  None of these is correct. 
A)  the rms speed 
B)  the average speed 
C)  the most probable speed 
D)  All three of these speeds are correct. 
E)  None of these is correct.

Question 15

A constant-volume gas thermometer reads 6.66 kPa at the triple point of water. What is the pressure reading at the normal boiling point of water?

Accepted Answer

A)  2.44 kPa 
B)  18.2 kPa 
C)  9.10 kPa 
D)  11.8 kPa 
E)  4.87 kPa 
A)  2.44 kPa 
B)  18.2 kPa 
C)  9.10 kPa 
D)  11.8 kPa 
E)  4.87 kPa

Question 16

Use the following to answer question:  
-The figure shows the distribution of the molecular speeds of a gas for two different temperatures.

Accepted Answer

A)  The curve labeled T2 represents the distribution for the higher temperature molecules. 
B)  The point labeled "1" corresponds to the rms speed of the molecules whose temperature is T1. 
C)  The point labeled "2" corresponds to the maximum speed of the molecules whose temperature is T1. 
D)  The point labeled "3" corresponds to the average speed of the molecules whose temperature is T1. 
E)  None of these is correct. 
A)  The curve labeled T2 represents the distribution for the higher temperature molecules. 
B)  The point labeled "1" corresponds to the rms speed of the molecules whose temperature is T1. 
C)  The point labeled "2" corresponds to the maximum speed of the molecules whose temperature is T1. 
D)  The point labeled "3" corresponds to the average speed of the molecules whose temperature is T1. 
E)  None of these is correct.

Question 17

A cylinder contains oxygen gas at a temperature of 7ºC and a pressure of 15 atm in a volume of 100 L. A fitted piston is lowered into the cylinder, decreasing the volume occupied by the gas to 80 L and raising the temperature to 40ºC. The gas pressure is now approximately

Accepted Answer

A)  3040 atm 
B)  595 atm 
C)  108 atm 
D)  21 atm 
E)  17 atm 
A)  3040 atm 
B)  595 atm 
C)  108 atm 
D)  21 atm 
E)  17 atm

Question 18

A room measures 3 m $\times$ 4 m $\times$ 2 m and is at 15S1U1P1$\circ$S1S1P0C and 1 atm. When the temperature is increased to 25S1U1P1$\circ$S1S1P0C, the number of molecules that escaped from the room is, assuming that the pressure stays at 1 atm

Accepted Answer

A)  6.1 $\times$ 1026 
B)  2.1 $\times$ 1025 
C)  2.9 $\times$ 1026 
D)  1.2 $\times$ 1028 
E)  7.04 $\times$ 1027 
A)  6.1 $\times$ 1026 
B)  2.1 $\times$ 1025 
C)  2.9 $\times$ 1026 
D)  1.2 $\times$ 1028 
E)  7.04 $\times$ 1027

Question 19

A gas thermometer could measure temperature change by measuring the change in

Accepted Answer

A)  density at constant volume. 
B)  specific heat at constant volume. 
C)  pressure at constant volume. 
D)  volume at constant temperature. 
E)  mass at constant volume. 
A)  density at constant volume. 
B)  specific heat at constant volume. 
C)  pressure at constant volume. 
D)  volume at constant temperature. 
E)  mass at constant volume.

Question 20

Normal human body temperature is 98.6ºF. What is the corresponding Celsius temperature?

Accepted Answer

A)  54.8ºC 
B)  72.6ºC 
C)  40.0ºC 
D)  37.0ºC 
E)  35.5ºC 
A)  54.8ºC 
B)  72.6ºC 
C)  40.0ºC 
D)  37.0ºC 
E)  35.5ºC

The isotherm that corresponds to the highest temperature is the one labeled

When the temperature of an ideal gas is increased from 300 K to 400 K, the average kinetic energy of the gas molecules increases by a factor of

If it is known that two bodies are in thermal equilibrium, one can conclude that

If a mass of oxygen gas occupies a volume of 8 L at standard temperature and pressure, what is the change in the volume if the temperature is decreased to 136 K and the pressure remains constant?

The highest and lowest temperatures ever recorded in the United States are 134ºF (California, 1913) and -80ºF (Alaska, 1971). What are these temperatures in kelvins?

The temperature of the air on a hot day when the temperature is 108ºF is

A temperature of 14ºF is equivalent to

The graph shows the Maxwell-Boltzmann distribution function of the number of gas molecules per unit speed range at a given temperature. The average speed, the most probable speed, and the rms speed (in this order) are most likely given by

A 1 L container contains O₂ gas at STP. If the diameter of the O₂ molecule is 3.75 $\times$ 10 ^-10 m, the number of collisions per second is

In a Maxwell-Boltzmann distribution function of molecular speeds, the rms speed is

Doubling the Kelvin temperature of a gas increases which of the following measures of its molecular velocity by a factor of 1.4?

A constant-volume gas thermometer reads 6.66 kPa at the triple point of water. What is the pressure reading at the normal boiling point of water?

Use the following to answer question: -The figure shows the distribution of the molecular speeds of a gas for two different temperatures.

A cylinder contains oxygen gas at a temperature of 7ºC and a pressure of 15 atm in a volume of 100 L. A fitted piston is lowered into the cylinder, decreasing the volume occupied by the gas to 80 L and raising the temperature to 40ºC. The gas pressure is now approximately

A room measures 3 m $\times$ 4 m $\times$ 2 m and is at 15^$\circ$C and 1 atm. When the temperature is increased to 25^$\circ$C, the number of molecules that escaped from the room is, assuming that the pressure stays at 1 atm

A gas thermometer could measure temperature change by measuring the change in

Normal human body temperature is 98.6ºF. What is the corresponding Celsius temperature?

Systems of Measurement

Motion in One Dimension

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

Filters

Exam 17: Temperature and the Kinetic Theory of Gases

The isotherm that corresponds to the highest temperature is the one labeled

When the temperature of an ideal gas is increased from 300 K to 400 K, the average kinetic energy of the gas molecules increases by a factor of

If it is known that two bodies are in thermal equilibrium, one can conclude that

If a mass of oxygen gas occupies a volume of 8 L at standard temperature and pressure, what is the change in the volume if the temperature is decreased to 136 K and the pressure remains constant?

The highest and lowest temperatures ever recorded in the United States are 134ºF (California, 1913) and -80ºF (Alaska, 1971). What are these temperatures in kelvins?

The temperature of the air on a hot day when the temperature is 108ºF is

A temperature of 14ºF is equivalent to

Two tanks, both of volume 10 L, are connected by a valve and are thermally isolated. One tank contains 1mole of 4He at 280 K and the other tank contains 1 mole O2 at 300 K. The valve is then opened and the gases allowed to mix. What is the final temperature after the gases have come to equilibrium?

The graph shows the Maxwell-Boltzmann distribution function of the number of gas molecules per unit speed range at a given temperature. The average speed, the most probable speed, and the rms speed (in this order) are most likely given by

A 1 L container contains O2 gas at STP. If the diameter of the O2 molecule is 3.75 ×\times× 10 -10 m, the number of collisions per second is

In a Maxwell-Boltzmann distribution function of molecular speeds, the rms speed is

Doubling the Kelvin temperature of a gas increases which of the following measures of its molecular velocity by a factor of 1.4?

A constant-volume gas thermometer reads 6.66 kPa at the triple point of water. What is the pressure reading at the normal boiling point of water?

Use the following to answer question: -The figure shows the distribution of the molecular speeds of a gas for two different temperatures.

A cylinder contains oxygen gas at a temperature of 7ºC and a pressure of 15 atm in a volume of 100 L. A fitted piston is lowered into the cylinder, decreasing the volume occupied by the gas to 80 L and raising the temperature to 40ºC. The gas pressure is now approximately

A room measures 3 m ×\times× 4 m ×\times× 2 m and is at 15 ∘\circ∘ C and 1 atm. When the temperature is increased to 25 ∘\circ∘ C, the number of molecules that escaped from the room is, assuming that the pressure stays at 1 atm

A gas thermometer could measure temperature change by measuring the change in

Normal human body temperature is 98.6ºF. What is the corresponding Celsius temperature?

Systems of Measurement

Motion in One Dimension

Motion in Two and Three Dimensions

Newtons Laws

Applications of Newtons Laws

Work and Energy

Conservation of Energy

Systems of Particles and Conservation of Linear Momentum

Rotation

Conservation of Angular Momentum

Gravity

Static Equilibrium and Elasticity

Fluids

Oscillations

Wave Motion

Superposition and Standing Waves

Heat and the First Law of Thermodynamics

The Second Law of Thermodynamics

Thermal Properties and Processes

Filters

A 1 L container contains O₂ gas at STP. If the diameter of the O₂ molecule is 3.75 $\times$ 10 ^-10 m, the number of collisions per second is

A room measures 3 m $\times$ 4 m $\times$ 2 m and is at 15^$\circ$C and 1 atm. When the temperature is increased to 25^$\circ$C, the number of molecules that escaped from the room is, assuming that the pressure stays at 1 atm