Question 1

One mole of an ideal gas has a temperature of 25$\degree$C. If the volume is held constant and the pressure is doubled, the final temperature (in $\degree$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 D

Question 2

When the coefficient of linear expansion, $\alpha$, and the temperature change, Tf - Ti, are large, a length Li of a solid substance expands in length to:

Accepted Answer

A) Lf = $\alpha$Li(Tf - Ti). 
B) Lf = Li[1 + $\alpha$(Tf - Ti)]. 
C) Lf = Li[1 + ln($\alpha$(Tf - Ti))]. 
D)    . 
E)    . 
A) Lf = $\alpha$Li(Tf - Ti). 
B) Lf = Li[1 + $\alpha$(Tf - Ti)]. 
C) Lf = Li[1 + ln($\alpha$(Tf - Ti))]. 
D)    . 
E)    . D

Question 3

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. E

Question 4

Water at room temperature, 20 $\degree$C, is pumped into a reactor core where it is converted to steam at 200 $\degree$C. How much heat (in J) is transferred to each kilogram of water in this process? (csteam = 2 010 J/kg. $\degree$C; Lsteam = 2.26 F* 103 J/g; 1 cal = 4.186 J.)

Accepted Answer

A) 3.35 * 105 
B) 7.53 * 105 
C) 2.67 * 106 
D) 2.80 * 106 
E) 3.01 *106 
A) 3.35 * 105 
B) 7.53 * 105 
C) 2.67 * 106 
D) 2.80 * 106 
E) 3.01 *106

Question 5

How many Joules of heat are required to raise the temperature of 4 kg of water from 10 $\degree$C to the boiling point?

Accepted Answer

A) 6.5* 105 
B) 3.6 * 105 
C) 15 * 105 
D) 360 
E) 4 * 104 
A) 6.5* 105 
B) 3.6 * 105 
C) 15 * 105 
D) 360 
E) 4 * 104

Question 6

If 25 kg of ice at 0 $\degree$C is combined with 4 kg of steam at 100 $\degree$C, what will be the final equilibrium temperature (in  $\degree$C) of the system?

Accepted Answer

A) 40 
B) 20 
C) 60 
D) 100 
E) 8 
A) 40 
B) 20 
C) 60 
D) 100 
E) 8

Question 7

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

Question 8

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 9

A bicycle pump contains air at one atmosphere and 0 $\degree$C. As the tyre 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 10

Which of the following is not a possible thermometric property of a body?

Accepted Answer

A) The change in length of a solid. 
B) The change in volume of a gas at constant pressure. 
C) The change in pressure of a gas at constant volume. 
D) The change in weight at constant pressure and volume. 
E) The change in electrical resistance of a conductor. 
A) The change in length of a solid. 
B) The change in volume of a gas at constant pressure. 
C) The change in pressure of a gas at constant volume. 
D) The change in weight at constant pressure and volume. 
E) The change in electrical resistance of a conductor.

Question 11

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 12

What is the change in area (in cm2) of a 60.0 cm x 150 cm automobile windshield when the temperature changes from 0$\degree$ C to 36.0$\degree$ C. The coefficient of linear expansion of this glass is 9.0 * 10-6/$\degree$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 13

Which of the following substances has the greatest specific heat?

Accepted Answer

A) copper 
B) ice 
C) water 
D) steam 
E) Ice, water, and steam have equal specific heats since they are the same material, and this specific heat is greater than that of copper. 
A) copper 
B) ice 
C) water 
D) steam 
E) Ice, water, and steam have equal specific heats since they are the same material, and this specific heat is greater than that of copper.

Question 14

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 15

Determine the change in length of a 20-m railway track made of steel if the temperature is changed from -15$\degree$C to +35$\degree$C. ($\alpha$STEEL = 1.1 *10-5/$\degree$C)

Accepted Answer

The answer of Determine the change in length of a...

Question 16

The mass of a sulphur atom is 32.0 u, and the mass of a fluorine atom is 19.0 u. What is the mass of a mole of sulphur 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 17

An auditorium has dimensions 10 m *10 m *60 m. How many moles of air fill this volume at one atmosphere and 0$\degree$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

Question 18

A bubble having a diameter of 1.00 cm is released from the bottom of a swimming pool where the depth is 5.00 m. What will the diameter of the bubble be when it reaches the surface? The temperature of the water at the surface is 20.0$\degree$C, whereas it is 15.0$\degree$C at the bottom. (The density of water is 1.00*103 kg/m3.)

Accepted Answer

A) 1.05 cm 
B) 1.15 cm 
C) 1.45 cm 
D) 1.65 cm 
E) 1.35 cm 
A) 1.05 cm 
B) 1.15 cm 
C) 1.45 cm 
D) 1.65 cm 
E) 1.35 cm

Question 19

A container with a one-litre capacity at 27$\degree$ C is filled with helium to a pressure of 2.0 atm. (1 atm = 1.0 * 105 N/m2.) How many moles of helium does it hold?

Accepted Answer

A) 0.041 
B) 0.081 
C) 0.45 
D) 0.90 
E) 1.0 
A) 0.041 
B) 0.081 
C) 0.45 
D) 0.90 
E) 1.0

Question 20

A 100-g cube of ice is heated from -120 $\degree$C to +120 $\degree$C. In which of the following processes is the greatest amount of energy absorbed by this material?

Accepted Answer

A) warming ice to the melting point 
B) melting the ice to become water 
C) warming the resulting water 
D) vaporising the water to become steam 
E) heating the steam 
A) warming ice to the melting point 
B) melting the ice to become water 
C) warming the resulting water 
D) vaporising the water to become steam 
E) heating the steam

Exam 19: Heat and Temperature

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

When the coefficient of linear expansion, α\alphaα , and the temperature change, Tf - Ti, are large, a length Li of a solid substance expands in length to:

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?

Water at room temperature, 20 °\degree° C, is pumped into a reactor core where it is converted to steam at 200 °\degree° C. How much heat (in J) is transferred to each kilogram of water in this process? (csteam = 2 010 J/kg. °\degree° C; Lsteam = 2.26 F* 103 J/g; 1 cal = 4.186 J.)

How many Joules of heat are required to raise the temperature of 4 kg of water from 10 °\degree° C to the boiling point?

If 25 kg of ice at 0 °\degree° C is combined with 4 kg of steam at 100 °\degree° C, what will be the final equilibrium temperature (in °\degree° C) of the system?

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.

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)

A bicycle pump contains air at one atmosphere and 0 °\degree° C. As the tyre 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?

Which of the following is not a possible thermometric property of a body?

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

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

Which of the following substances has the greatest specific heat?

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

Determine the change in length of a 20-m railway track made of steel if the temperature is changed from -15 °\degree° C to +35 °\degree° C. ( α\alphaα STEEL = 1.1 *10-5/ °\degree° C)

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

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

A container with a one-litre capacity at 27 °\degree° C is filled with helium to a pressure of 2.0 atm. (1 atm = 1.0 * 105 N/m2.) How many moles of helium does it hold?

A 100-g cube of ice is heated from -120 °\degree° C to +120 °\degree° C. In which of the following processes is the greatest amount of energy absorbed by this material?

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Forces and Newtons Laws

Further Applications of Newtons Laws

Work, Force and Energy

Conservation of Energy

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Special Relativity

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

When the coefficient of linear expansion, $\alpha$ , and the temperature change, Tf - Ti, are large, a length Li of a solid substance expands in length to:

Water at room temperature, 20 $\degree$ C, is pumped into a reactor core where it is converted to steam at 200 $\degree$ C. How much heat (in J) is transferred to each kilogram of water in this process? (csteam = 2 010 J/kg. $\degree$ C; Lsteam = 2.26 F* 103 J/g; 1 cal = 4.186 J.)

How many Joules of heat are required to raise the temperature of 4 kg of water from 10 $\degree$ C to the boiling point?

If 25 kg of ice at 0 $\degree$ C is combined with 4 kg of steam at 100 $\degree$ C, what will be the final equilibrium temperature (in $\degree$ C) of the system?

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)

A bicycle pump contains air at one atmosphere and 0 $\degree$ C. As the tyre 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?

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

Determine the change in length of a 20-m railway track made of steel if the temperature is changed from -15 $\degree$ C to +35 $\degree$ C. ( $\alpha$ STEEL = 1.1 *10-5/ $\degree$ C)

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

A container with a one-litre capacity at 27 $\degree$ C is filled with helium to a pressure of 2.0 atm. (1 atm = 1.0 * 105 N/m².) How many moles of helium does it hold?

A 100-g cube of ice is heated from -120 $\degree$ C to +120 $\degree$ C. In which of the following processes is the greatest amount of energy absorbed by this material?