Question 1

A temperature difference of 9.0 Celsius degrees is equal to a Fahrenheit temperature difference of

Accepted Answer

A) 5.0 Fahrenheit degrees. 
B) 9.0 Fahrenheit degrees. 
C) 16 Fahrenheit degrees. 
D) 37 Fahrenheit degrees. 
E) 41 Fahrenheit degrees. 
A) 5.0 Fahrenheit degrees. 
B) 9.0 Fahrenheit degrees. 
C) 16 Fahrenheit degrees. 
D) 37 Fahrenheit degrees. 
E) 41 Fahrenheit degrees.

Question 2

The root mean square speed of a gas molecule is greater than the average speed,because the former gives a greater weight to

Accepted Answer

A) lighter molecules. 
B) heavier molecules. 
C) lower speeds. 
D) higher speeds. 
E) more probable speeds. 
A) lighter molecules. 
B) heavier molecules. 
C) lower speeds. 
D) higher speeds. 
E) more probable speeds.

Question 3

A thermometer registers a change in temperature of 100$\degree$F.What change in temperature does this correspond to on the Kelvin Scale?

Accepted Answer

A) 453 
B) 328 
C) 180 
D) 55.6 
E) 24.5 
A) 453 
B) 328 
C) 180 
D) 55.6 
E) 24.5

Question 4

A gallon container is filled with gasoline.How many gallons are lost if the temperature increases by 25$\degree$F? (The volume expansion of gasoline is 9.6 *10 - 4 ($\degree$C) - 1. )(Neglect the change in volume of the container. )

Accepted Answer

A) 2.4 *10 - 2 
B) 1.3 * 10 - 2 
C) 3.6 *10 - 2 
D) 4.8 *10 - 2 
E) 9.6 *10 - 2 
A) 2.4 *10 - 2 
B) 1.3 * 10 - 2 
C) 3.6 *10 - 2 
D) 4.8 *10 - 2 
E) 9.6 *10 - 2

Question 5

A bowling ball size probe from a spaceship and a pebble size object land on a large asteroid that is far from any star.After a long period of time has passed,it is highly probable that the pebble and the probe

Accepted Answer

A) have each had the same change in temperature. 
B) have each had the same change in volume. 
C) are in thermal equilibrium with one another. 
D) are not in thermal equilibrium with one another. 
E) are in thermal equilibrium with one another,but are not at the same temperature. 
A) have each had the same change in temperature. 
B) have each had the same change in volume. 
C) are in thermal equilibrium with one another. 
D) are not in thermal equilibrium with one another. 
E) are in thermal equilibrium with one another,but are not at the same temperature.

Question 6

The average molecular translational kinetic energy of a molecule in an ideal gas is

Accepted Answer

A)  $\frac { 3 } { 2 }$ kBT. 
B)  $\frac { 3 } { 2 }$ RT. 
C)  $\frac { 5 } { 2 }$ kBT. 
D)  $\frac { 5 } { 2 }$ RT. 
E)  $\frac { n + 3 } { 2 }$ kBT,where n = number of internal degrees of freedom. 
A)  $\frac { 3 } { 2 }$ kBT. 
B)  $\frac { 3 } { 2 }$ RT. 
C)  $\frac { 5 } { 2 }$ kBT. 
D)  $\frac { 5 } { 2 }$ RT. 
E)  $\frac { n + 3 } { 2 }$ kBT,where n = number of internal degrees of freedom.

Question 7

A bicycle pump contains air at one atmosphere and 0  $\degree$C.As the tire is pumped up,the volume of air decreases by 50% with each stroke.What is the new pressure of air (in atm)in the chamber after the first stroke,assuming no temperature change?

Accepted Answer

A) 2 
B) 1 
C) 0.5 
D) 0.1 
E) 3 
A) 2 
B) 1 
C) 0.5 
D) 0.1 
E) 3

Question 8

In order to understand the concept of temperature it is necessary to understand

Accepted Answer

A) the zeroth law of thermodynamics. 
B) the first law of thermodynamics. 
C) the second law of thermodynamics. 
D) all of the above. 
E) only (b)and (c)above. 
A) the zeroth law of thermodynamics. 
B) the first law of thermodynamics. 
C) the second law of thermodynamics. 
D) all of the above. 
E) only (b)and (c)above.

Question 9

Two identical containers,A and B,hold equal amounts of the same ideal gas at the same Po,Vo and To.The pressure of A then decreases by a half while its volume doubles;the pressure of B doubles while its volume decreases by a half.Which statement correctly describes the temperatures of the gases after the changes?

Accepted Answer

A) TA = 0.5TB = To. 
B) TB = 0.5TA = To. 
C) TB = TA = To. 
D) TA = 2TB = To. 
E) TB = 2TA = To. 
A) TA = 0.5TB = To. 
B) TB = 0.5TA = To. 
C) TB = TA = To. 
D) TA = 2TB = To. 
E) TB = 2TA = To.

Question 10

A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0$\degree$C.Determine its diameter at 100.0$\degree$C.($\alpha$GOLD = 1.42 * 10 - 5/$\degree$C)

Accepted Answer

The answer of A gold ring has an inner diameter...

Question 11

Which statement below is NOT an assumption made in the molecular model of an ideal gas?

Accepted Answer

A) The average separation between molecules is large compared with the dimensions of the molecules. 
B) The molecules undergo inelastic collisions with one another. 
C) The forces between molecules are short range. 
D) The molecules obey Newton's laws of motion. 
E) Any molecule can move in any direction with equal probability. 
A) The average separation between molecules is large compared with the dimensions of the molecules. 
B) The molecules undergo inelastic collisions with one another. 
C) The forces between molecules are short range. 
D) The molecules obey Newton's laws of motion. 
E) Any molecule can move in any direction with equal probability.

Question 12

If the rms speed of helium atoms is vrms,He at temperature T,what is the rms speed of CO2 at the same temperature?

Accepted Answer

A)  $$\nu _ { \operatorname { rms} , H e } / 44$$ 
B)  $$\nu _ { \operatorname { rms} , H e } / 11$$ 
C)  $v _ { \operatorname { rms} , H { e } } / \sqrt { 44 }$ 
D)  $v _ { \operatorname { rms} , H { e } } / \sqrt { 11 }$ 
E)  $\nu _ { \operatorname { rms} , \mathrm { He } } / \sqrt { 22 }$ 
A)  $$\nu _ { \operatorname { rms} , H e } / 44$$ 
B)  $$\nu _ { \operatorname { rms} , H e } / 11$$ 
C)  $v _ { \operatorname { rms} , H { e } } / \sqrt { 44 }$ 
D)  $v _ { \operatorname { rms} , H { e } } / \sqrt { 11 }$ 
E)  $\nu _ { \operatorname { rms} , \mathrm { He } } / \sqrt { 22 }$

Question 13

The pressure of a substance is directly proportional to its volume when the temperature is held constant and inversely proportional to its temperature when the volume is held constant.Is this substance an ideal gas? Explain why your answer is correct.

Accepted Answer

No.Since P = kV and P = k'/T for fixed t

Question 14

The mass of a sulfur atom is 32.0 u,and the mass of a fluorine atom is 19.0 u.What is the mass of a mole of sulfur hexafluoride (UF6)?

Accepted Answer

A) 41.0 g 
B) 20.5 g 
C) 106 g 
D) 146 g 
E) 211 g 
A) 41.0 g 
B) 20.5 g 
C) 106 g 
D) 146 g 
E) 211 g

Question 15

A pressure of 10.0 mm Hg is measured at the triple-point of water using a constant-volume gas thermometer.What will the pressure be (in mm Hg)at 50.0$\degree$C?

Accepted Answer

A) 68.3 
B) 1.80 
C) 31.8 
D) 11.8 
E) 8.50 
A) 68.3 
B) 1.80 
C) 31.8 
D) 11.8 
E) 8.50

Question 16

Two moles of an ideal gas are placed in a container of adjustable volume.When measurements are made

Accepted Answer

A) the pressure is inversely proportional to the volume at constant temperature. 
B) the temperature is directly proportional to the volume at constant pressure. 
C) the temperature is directly proportional to the pressure at constant volume. 
D) all the statements above are found to be correct. 
E) only statements (a)and (b)are found to be correct. 
A) the pressure is inversely proportional to the volume at constant temperature. 
B) the temperature is directly proportional to the volume at constant pressure. 
C) the temperature is directly proportional to the pressure at constant volume. 
D) all the statements above are found to be correct. 
E) only statements (a)and (b)are found to be correct.

Question 17

A temperature difference of 5 K is equal to

Accepted Answer

A) a difference of 9 on the Celsius scale. 
B) a difference of 9 on the Fahrenheit scale. 
C) a difference of 2.8 on the Rankine scale. 
D) a difference of .5 on the Fahrenheit scale. 
E) a difference of 2.8 on the Celsius scale. 
A) a difference of 9 on the Celsius scale. 
B) a difference of 9 on the Fahrenheit scale. 
C) a difference of 2.8 on the Rankine scale. 
D) a difference of .5 on the Fahrenheit scale. 
E) a difference of 2.8 on the Celsius scale.

Question 18

According to kinetic theory,a typical gas molecule in thermal equilibrium at room temperature has a kinetic energy K = 6.00 *10 - 21 J,regardless of mass.Estimate the speed at room temperature of a hydrogen molecule H2 (m = 3.34 *10 - 27 kg)and a xenon atom (m = 2.00 *10 - 25 kg).[kB = 1.38 *10 - 23 J/K]

Accepted Answer

The answer of According to kinetic theory,a typical gas molecule...

Question 19

Suppose the ends of a 30-m long steel beam are rigidly clamped at 0 $\degree$C to prevent expansion.The beam has a cross-sectional area of 30 cm2.What force against the clamps does the beam exert when it is heated to 40 $\degree$C? ($\alpha$Steel = 1.1 * 10 - 5/ $\degree$C,Ysteel = 20 *1010 N/m2).

Accepted Answer

2.6 * 10<s

Question 20

A bridge is made with segments of concrete 50 m long.If the linear expansion coefficient is 12 *10 - 6 ($\degree$C) - 1,how much spacing (in cm)is needed to allow for expansion during an extreme temperature change of 150$\degree$  F?

Accepted Answer

A) 10 
B) 2.5 
C) 7.5 
D) 5.0 
E) 9.5 
A) 10 
B) 2.5 
C) 7.5 
D) 5.0 
E) 9.5

Exam 16: Temperature and the Kinetic Theory of Gases

A temperature difference of 9.0 Celsius degrees is equal to a Fahrenheit temperature difference of

The root mean square speed of a gas molecule is greater than the average speed,because the former gives a greater weight to

A thermometer registers a change in temperature of 100 °\degree° F.What change in temperature does this correspond to on the Kelvin Scale?

A gallon container is filled with gasoline.How many gallons are lost if the temperature increases by 25 °\degree° F? (The volume expansion of gasoline is 9.6 *10 - 4 ( °\degree° C) - 1. )(Neglect the change in volume of the container. )

A bowling ball size probe from a spaceship and a pebble size object land on a large asteroid that is far from any star.After a long period of time has passed,it is highly probable that the pebble and the probe

The average molecular translational kinetic energy of a molecule in an ideal gas is

A bicycle pump contains air at one atmosphere and 0 °\degree° C.As the tire is pumped up,the volume of air decreases by 50% with each stroke.What is the new pressure of air (in atm)in the chamber after the first stroke,assuming no temperature change?

In order to understand the concept of temperature it is necessary to understand

A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0 °\degree° C.Determine its diameter at 100.0 °\degree° C.( α\alphaα GOLD = 1.42 * 10 - 5/ °\degree° C)

Which statement below is NOT an assumption made in the molecular model of an ideal gas?

If the rms speed of helium atoms is vrms,He at temperature T,what is the rms speed of CO2 at the same temperature?

The pressure of a substance is directly proportional to its volume when the temperature is held constant and inversely proportional to its temperature when the volume is held constant.Is this substance an ideal gas? Explain why your answer is correct.

The mass of a sulfur atom is 32.0 u,and the mass of a fluorine atom is 19.0 u.What is the mass of a mole of sulfur hexafluoride (UF6)?

A pressure of 10.0 mm Hg is measured at the triple-point of water using a constant-volume gas thermometer.What will the pressure be (in mm Hg)at 50.0 °\degree° C?

Two moles of an ideal gas are placed in a container of adjustable volume.When measurements are made

A temperature difference of 5 K is equal to

A bridge is made with segments of concrete 50 m long.If the linear expansion coefficient is 12 *10 - 6 ( °\degree° C) - 1,how much spacing (in cm)is needed to allow for expansion during an extreme temperature change of 150 °\degree° F?

Introduction and Vectors

Motion in One Dimension

Motion in Two Dimensions

The Laws of Motion

More Applications of Newtons Laws

Energy of a System

Conservation of Energy

Momentum and Collisions

Relativity

Rotational Motion

Gravity,planetary Orbits,and the Hydrogen Atom

Oscillatory Motion

Mechanical Waves

Superposition and Standing Waves

Fluid Mechanics

Energy in Thermal Processes: the First Law of Thermodynamics

Heat Engines,entropy,and the Second Law of Thermodynamics

Electric Forces and Electric Fields

Electric Potential and Capacitance

Current and Direct Current Circuits

Magnetic Forces and Magnetic Fields

Faradays Law and Inductance

Electromagnetic Waves

Reflection and Refraction of Light

Image Formation by Mirrors and Lenses

Wave Optics

Quantum Physics

Atomic Physics

Nuclear Physics

Particle Physics

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A thermometer registers a change in temperature of 100 $\degree$ F.What change in temperature does this correspond to on the Kelvin Scale?

A gallon container is filled with gasoline.How many gallons are lost if the temperature increases by 25 $\degree$ F? (The volume expansion of gasoline is 9.6 *10 ^- ⁴ ( $\degree$ C) ^- ¹. )(Neglect the change in volume of the container. )

A bicycle pump contains air at one atmosphere and 0 $\degree$ C.As the tire is pumped up,the volume of air decreases by 50% with each stroke.What is the new pressure of air (in atm)in the chamber after the first stroke,assuming no temperature change?

A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0 $\degree$ C.Determine its diameter at 100.0 $\degree$ C.( $\alpha$ _GOLD = 1.42 * 10 ^- ⁵/ $\degree$ C)

If the rms speed of helium atoms is v_rms,He at temperature T,what is the rms speed of CO₂ at the same temperature?

The mass of a sulfur atom is 32.0 u,and the mass of a fluorine atom is 19.0 u.What is the mass of a mole of sulfur hexafluoride (UF₆)?

A pressure of 10.0 mm Hg is measured at the triple-point of water using a constant-volume gas thermometer.What will the pressure be (in mm Hg)at 50.0 $\degree$ C?

A bridge is made with segments of concrete 50 m long.If the linear expansion coefficient is 12 *10 ^- ⁶ ( $\degree$ C) ^- ¹,how much spacing (in cm)is needed to allow for expansion during an extreme temperature change of 150 $\degree$ F?