Question 1

An auditorium has dimensions 10 m × 10 m × 60 m. How many moles of air fill this volume at one atmosphere and 0°C?

Accepted Answer

A) 2.7 × 102 
B) 2.7 × 104 
C) 2.7 × 103 
D) 2.7 × 105 
E) 2.7 × 106 
A) 2.7 × 102 
B) 2.7 × 104 
C) 2.7 × 103 
D) 2.7 × 105 
E) 2.7 × 106 D

Question 2

A pressure of 10.0 mm Hg is measured using a constant-volume gas thermometer at a temperature of 50.0°C. What is the pressure (in mm Hg) at the zero-point temperature?

Accepted Answer

A) 31.8 
B) 11.8 
C) 8.45 
D) 54.6 
E) 68.3 
A) 31.8 
B) 11.8 
C) 8.45 
D) 54.6 
E) 68.3 C

Question 3

Suppose the ends of a 30-m-long steel beam are rigidly clamped at 0°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°C? (αSteel = 1.1 × 10−5/°C, Ysteel = 20 × 1010N/m2).

Accepted Answer

2.6 × 10⁵ N

Question 4

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 5

A thermometer registers a change in temperature of 100°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 6

Death Valley in California receives many German tourists. When you convert a summer temperature reading of 130°F to the Celsius scale they use at home, you find that the Celsius temperature is about

Accepted Answer

A) 26°C. 
B) 54°C. 
C) 72°C. 
D) 176°C 
E) 327°C. 
A) 26°C. 
B) 54°C. 
C) 72°C. 
D) 176°C 
E) 327°C.

Question 7

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 0.5 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 0.5 on the Fahrenheit scale. 
E) a difference of 2.8 on the Celsius scale.

Question 8

A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0°C. Determine its diameter at 100.0°C. (αGOLD = 1.42 × 10−5/°C)

Accepted Answer

Question 9

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

Question 10

At which of the following temperatures would one liter of water weigh the most?

Accepted Answer

A) 2°C 
B) 4°C 
C) 8°C 
D) 90°C 
E) It would weigh the same at all these temperatures. 
A) 2°C 
B) 4°C 
C) 8°C 
D) 90°C 
E) It would weigh the same at all these temperatures.

Question 11

At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading?

Accepted Answer

A) −12.3°F 
B) −24.6°F 
C) −12.3°C 
D) −6.1°C 
E) −20°F 
A) −12.3°F 
B) −24.6°F 
C) −12.3°C 
D) −6.1°C 
E) −20°F

Question 12

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°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 13

Equal volumes of hydrogen and helium gas are at the same pressure. The atomic mass of helium is four times that of hydrogen. If the total mass of both gases is the same, the ratio of the temperature of helium (He) to that of hydrogen (H2) is

Accepted Answer

A)    . 
B)    . 
C) 1. 
D) 2. 
E) 4. 
A)    . 
B)    . 
C) 1. 
D) 2. 
E) 4.

Question 14

A child has a temperature of 104°F. What is the temperature in degrees kelvin?

Accepted Answer

A) 40 
B) 406 
C) 401 
D) 313 
E) 349 
A) 40 
B) 406 
C) 401 
D) 313 
E) 349

Question 15

A beaker is filled to the 500-ml mark with alcohol. What increase in volume (in ml) does the beaker contain when the temperature changes from 5°C to 30°C? (Neglect the expansion of the beaker, evaporation of alcohol and absorption of water vapor by alcohol.) βalcohol = 1.12 × 10−4/°C

Accepted Answer

A) 0.47 
B) 0.93 
C) 1.4 
D) 1.7 
E) 2.5 
A) 0.47 
B) 0.93 
C) 1.4 
D) 1.7 
E) 2.5

Question 16

What is the change in area (in cm2) of a 60.0-cm by 150-cm automobile windshield when the temperature changes from 0°C to 36.0°C. The coefficient of linear expansion of this glass is 9.0 × 10−6/°C.

Accepted Answer

A) 1.6 
B) 2.9 
C) 3.2 
D) 4.9 
E) 5.8 
A) 1.6 
B) 2.9 
C) 3.2 
D) 4.9 
E) 5.8

Question 17

An auditorium has a volume of 6 × 103 m3. How many molecules of air are needed to fill the auditorium at one atmosphere and 0°C?

Accepted Answer

A) 1.6 × 1029 
B) 1.6 × 1027 
C) 1.6 × 1025 
D) 1.6 × 1023 
E) 1.6 × 1020 
A) 1.6 × 1029 
B) 1.6 × 1027 
C) 1.6 × 1025 
D) 1.6 × 1023 
E) 1.6 × 1020

Question 18

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 19

One mole of an ideal gas has a temperature of 25°C. If the volume is held constant and the pressure is doubled, the final temperature (in °C) will be

Accepted Answer

A) 174 
B) 596 
C) 50 
D) 323 
E) 25 
A) 174 
B) 596 
C) 50 
D) 323 
E) 25

Question 20

Angela claims that she wears a cylindrical-shaped hollow gold bracelet because it expands less than a solid one with a change in temperature. Clarissa claims that a cylindrical-shaped solid gold bracelet expands less than a hollow one. Which one, if either, is correct?

Accepted Answer

A) Angela, because the bracelet expands outward on its outer surface and inward on its inner surface. 
B) Clarissa, because the bracelet expands outward on its outer surface and inward on its inner surface. 
C) Angela, because the inner circumference does not change, but the outer circumference expands. 
D) Clarissa, because the inner circumference does not change, but the outer circumference expands. 
E) Neither, because both the inner and outer circumferences increase in length. 
A) Angela, because the bracelet expands outward on its outer surface and inward on its inner surface. 
B) Clarissa, because the bracelet expands outward on its outer surface and inward on its inner surface. 
C) Angela, because the inner circumference does not change, but the outer circumference expands. 
D) Clarissa, because the inner circumference does not change, but the outer circumference expands. 
E) Neither, because both the inner and outer circumferences increase in length.

Exam 19: Temperature, Thermal Expansion, and Gas Laws

An auditorium has dimensions 10 m × 10 m × 60 m. How many moles of air fill this volume at one atmosphere and 0°C?

A pressure of 10.0 mm Hg is measured using a constant-volume gas thermometer at a temperature of 50.0°C. What is the pressure (in mm Hg) at the zero-point temperature?

Suppose the ends of a 30-m-long steel beam are rigidly clamped at 0°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°C? (αSteel = 1.1 × 10−5/°C, Ysteel = 20 × 1010N/m2).

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

Death Valley in California receives many German tourists. When you convert a summer temperature reading of 130°F to the Celsius scale they use at home, you find that the Celsius temperature is about

A temperature difference of 5 K is equal to

A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0°C. Determine its diameter at 100.0°C. (αGOLD = 1.42 × 10−5/°C)

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

At which of the following temperatures would one liter of water weigh the most?

At what temperature is the Celsius scale reading equal to twice the Fahrenheit scale reading?

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°C?

Equal volumes of hydrogen and helium gas are at the same pressure. The atomic mass of helium is four times that of hydrogen. If the total mass of both gases is the same, the ratio of the temperature of helium (He) to that of hydrogen (H2) is

A child has a temperature of 104°F. What is the temperature in degrees kelvin?

A beaker is filled to the 500-ml mark with alcohol. What increase in volume (in ml) does the beaker contain when the temperature changes from 5°C to 30°C? (Neglect the expansion of the beaker, evaporation of alcohol and absorption of water vapor by alcohol.) βalcohol = 1.12 × 10−4/°C

What is the change in area (in cm2) of a 60.0-cm by 150-cm automobile windshield when the temperature changes from 0°C to 36.0°C. The coefficient of linear expansion of this glass is 9.0 × 10−6/°C.

An auditorium has a volume of 6 × 103 m3. How many molecules of air are needed to fill the auditorium at one atmosphere and 0°C?

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

One mole of an ideal gas has a temperature of 25°C. If the volume is held constant and the pressure is doubled, the final temperature (in °C) will be

Angela claims that she wears a cylindrical-shaped hollow gold bracelet because it expands less than a solid one with a change in temperature. Clarissa claims that a cylindrical-shaped solid gold bracelet expands less than a hollow one. Which one, if either, is correct?

Getting Started

One-Dimensional Motion

Vectors

Two- and Three-Dimensional Motion

Newtons Laws of Motion

Applications of Newtons Laws of Motion

Gravity

Conservation of Energy

Energy in Nonisolated Systems

Systems of Particles and Conservation of Momentum

Collisions

Rotation I: Kinematics and Dynamics

Rotation II: a Conservation Approach

Static Equilibrium, Elasticity, and Fracture

Fluids

Oscillations

Traveling Waves

Superposition and Standing Waves

Kinetic Theory of Gases

Heat and the First Law of Thermodynamics

Entropy and the Second Law of Thermodynamics

Electric Forces

Electric Fields

Gausss Law

Electric Potential

Capacitors and Batteries

Current and Resistance

Direct Current Dc Circuits

Magnetic Fields and Forces

Gausss Law for Magnetism and Amperes Law

Faradays Law of Induction

Inductors and Ac Circuits

Maxwells Equations and Electromagnetic Waves

Diffraction and Interference

Applications of the Wave Model

Reflection and Images Formed by Reflection

Refraction and Images Formed by Refraction

Relativity

Filters

Suppose the ends of a 30-m-long steel beam are rigidly clamped at 0°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°C? (αSteel = 1.1 × 10⁻⁵/°C, Ysteel = 20 × 10¹⁰N/m²).

A gold ring has an inner diameter of 2.168 cm at a temperature of 15.0°C. Determine its diameter at 100.0°C. (αGOLD = 1.42 × 10⁻⁵/°C)

Equal volumes of hydrogen and helium gas are at the same pressure. The atomic mass of helium is four times that of hydrogen. If the total mass of both gases is the same, the ratio of the temperature of helium (He) to that of hydrogen (H₂) is

A beaker is filled to the 500-ml mark with alcohol. What increase in volume (in ml) does the beaker contain when the temperature changes from 5°C to 30°C? (Neglect the expansion of the beaker, evaporation of alcohol and absorption of water vapor by alcohol.) βalcohol = 1.12 × 10⁻⁴/°C

What is the change in area (in cm²) of a 60.0-cm by 150-cm automobile windshield when the temperature changes from 0°C to 36.0°C. The coefficient of linear expansion of this glass is 9.0 × 10⁻⁶/°C.

An auditorium has a volume of 6 × 10³ m³. How many molecules of air are needed to fill the auditorium at one atmosphere and 0°C?