Question 1

The amount of heat needed to raise the temperature of one gram of an ideal gas by 1.0 K at constant volume is the same for all monatomic gases.

Accepted Answer

A) True 
 B)False

Question 2

The amount of heat needed to raise the temperature of one mole of an ideal gas by 1.0 K at constant volume is the same for all monatomic gases.

Accepted Answer

A) True 
 B)False

Question 3

Dust particles are pulverized rock,which has density 2500kg/m3.They are approximately spheres with 10μm in diameter.Treating dust as an ideal gas,what is the rms speed of a dust particle at 400°C?

Accepted Answer

A) 5.2 × 10-5 m/s 
B) 1.7 × 10-5 m/s 
C) 3.0 × 10-5 m/s 
D) 7.3 × 10-5 m/s 
A) 5.2 × 10-5 m/s 
B) 1.7 × 10-5 m/s 
C) 3.0 × 10-5 m/s 
D) 7.3 × 10-5 m/s

Question 4

52 g of methane (CH4)contain 3.25 moles of this gas.

Accepted Answer

A) True 
 B)False

Question 5

The figure shows a PV diagram for 8.3 g of nitrogen gas in a sealed container.The temperature of state 1 is 79°C.What are (a)pressure p1 and (b)temperature T2?

Accepted Answer

A) (a)86 atm (b)700°C 
B) (a)19 atm (b)700°C 
C) (a)86 atm (b)160°C 
D) (a)19 atm (b)160°C 
A) (a)86 atm (b)700°C 
B) (a)19 atm (b)700°C 
C) (a)86 atm (b)160°C 
D) (a)19 atm (b)160°C

Question 6

A 24.0 kg sample of ice is at 0.00°C.How much heat is needed to melt it? (For water Lf = 334 kJ/kg and Lv = 2257 kJ/kg. )

Accepted Answer

A) 8.02 × 103 kJ 
B) 2.19 × 106 kJ 
C) 0.00 kJ 
D) 5.42 × 104 kJ 
A) 8.02 × 103 kJ 
B) 2.19 × 106 kJ 
C) 0.00 kJ 
D) 5.42 × 104 kJ

Question 7

A cylinder fitted with a movable piston contains ideal gas at 27°C,pressure 0.50 x 105 Pa and volume 1.25 m3.What will be the final temperature if the gas is compressed to 0.80 m3 and the pressure rises to 0.82 × 105 Pa?

Accepted Answer

A) 41.8°C 
B) 67.7°C 
C) 125°C 
D) 246°C 
E) 154°C 
A) 41.8°C 
B) 67.7°C 
C) 125°C 
D) 246°C 
E) 154°C

Question 8

The temperature is increased from 20°C to 180°C.By what factor does the rms speed of a molecule change?

Accepted Answer

A) 1.2 
B) 1.5 
C) 3.0 
D) 2.4 
A) 1.2 
B) 1.5 
C) 3.0 
D) 2.4

Question 9

As you add heat to boiling water,its temperature gets higher and higher.

Accepted Answer

A) True 
 B)False

Question 10

The oxygen molecules and the nitrogen molecules at any one place in our atmosphere are at the same temperature.How do the root-mean-square speeds of the two molecules compare?

Accepted Answer

A) same 
B) N2 > O2 
C) O2 > N2 
A) same 
B) N2 > O2 
C) O2 > N2

Question 11

A horizontal line on a PV diagram represents an isobaric process.

Accepted Answer

A) True 
 B)False

Question 12

A hot air balloon has a volume of 2000 m3 when fully inflated,and the air inside the balloon is always at atmospheric pressure because of the large opening used to fill the balloon and heat the air inside it.What's the mass of hot air inside the balloon if its temperature is 120°C? (Assume a molecular weight of 28.8 g/mole for air. )

Accepted Answer

A) 1790 kg 
B) 5850 kg 
C) 203 kg 
D) 62.0 kg 
E) None of the above 
A) 1790 kg 
B) 5850 kg 
C) 203 kg 
D) 62.0 kg 
E) None of the above

Question 13

An ideal gas is in a closed container.If its pressure is 133 Pa initially,and its temperature is 20.0ºC,what is its pressure after its temperature is raised to 60.0ºC?

Accepted Answer

A) 151 Pa 
B) 117 Pa 
C) 44 Pa 
D) 399 Pa 
A) 151 Pa 
B) 117 Pa 
C) 44 Pa 
D) 399 Pa

Question 14

A 2294 kg sample of water at 0°C is cooled to -36ºC,and freezes in the process.How much heat is liberated? (For water Lf = 334 kJ/kg and Lv = 2257 kJ/kg.The specific heat for ice is 2050 J/kg · K. )

Accepted Answer

A) 935,000 kJ 
B) 597,000 kJ 
C) 1,110,000 kJ 
D) 334,000 kJ 
A) 935,000 kJ 
B) 597,000 kJ 
C) 1,110,000 kJ 
D) 334,000 kJ

Question 15

A constant-volume gas thermometer supports a 33 mm high column of mercury when its temperature is 216 K.What will the height of the column of mercury be when the temperature is 298 K? Answer to the nearest millimeter.

Accepted Answer

A) 46 mm 
B) 24 mm 
C) 36 mm 
D) 42 mm 
A) 46 mm 
B) 24 mm 
C) 36 mm 
D) 42 mm

Question 16

If the root mean square speed of gas molecules is doubled,then both its pressure and its absolute temperature will also be doubled.

Accepted Answer

A) True 
 B)False

Question 17

A gas follows the pV trajectory shown in the figure.How much work is done per cycle by the gas if p0 = 5.4 atm?

Accepted Answer

A) 220 J 
B) 440 J 
C) 870 J 
D) 1100 J 
A) 220 J 
B) 440 J 
C) 870 J 
D) 1100 J

Question 18

A monatomic ideal gas (Cv = 3/2 R)undergoes an isothermal expansion at 300 K,as the volume increased from 0.05 m3 to 0.15 m3.The final pressure is 130 kPa.The heat transfer to the gas,in kJ,is closest to:

Accepted Answer

A) 21 
B) 11 
C) -21 
D) -11 
E) zero 
A) 21 
B) 11 
C) -21 
D) -11 
E) zero

Question 19

If a piece of metal has a hole in it and the metal is heated,how does the area of the hole change?

Accepted Answer

The answer of If a piece of metal has a...

Exam 12: Thermal Properties of Matter

The amount of heat needed to raise the temperature of one gram of an ideal gas by 1.0 K at constant volume is the same for all monatomic gases.

The amount of heat needed to raise the temperature of one mole of an ideal gas by 1.0 K at constant volume is the same for all monatomic gases.

Dust particles are pulverized rock,which has density 2500kg/m3.They are approximately spheres with 10μm in diameter.Treating dust as an ideal gas,what is the rms speed of a dust particle at 400°C?

52 g of methane (CH4)contain 3.25 moles of this gas.

The figure shows a PV diagram for 8.3 g of nitrogen gas in a sealed container.The temperature of state 1 is 79°C.What are (a)pressure p1 and (b)temperature T2?

A 24.0 kg sample of ice is at 0.00°C.How much heat is needed to melt it? (For water Lf = 334 kJ/kg and Lv = 2257 kJ/kg. )

A cylinder fitted with a movable piston contains ideal gas at 27°C,pressure 0.50 x 105 Pa and volume 1.25 m3.What will be the final temperature if the gas is compressed to 0.80 m3 and the pressure rises to 0.82 × 105 Pa?

The temperature is increased from 20°C to 180°C.By what factor does the rms speed of a molecule change?

As you add heat to boiling water,its temperature gets higher and higher.

The oxygen molecules and the nitrogen molecules at any one place in our atmosphere are at the same temperature.How do the root-mean-square speeds of the two molecules compare?

A horizontal line on a PV diagram represents an isobaric process.

An ideal gas is in a closed container.If its pressure is 133 Pa initially,and its temperature is 20.0ºC,what is its pressure after its temperature is raised to 60.0ºC?

A 2294 kg sample of water at 0°C is cooled to -36ºC,and freezes in the process.How much heat is liberated? (For water Lf = 334 kJ/kg and Lv = 2257 kJ/kg.The specific heat for ice is 2050 J/kg · K. )

A constant-volume gas thermometer supports a 33 mm high column of mercury when its temperature is 216 K.What will the height of the column of mercury be when the temperature is 298 K? Answer to the nearest millimeter.

If the root mean square speed of gas molecules is doubled,then both its pressure and its absolute temperature will also be doubled.

A gas follows the pV trajectory shown in the figure.How much work is done per cycle by the gas if p0 = 5.4 atm?

A monatomic ideal gas (Cv = 3/2 R)undergoes an isothermal expansion at 300 K,as the volume increased from 0.05 m3 to 0.15 m3.The final pressure is 130 kPa.The heat transfer to the gas,in kJ,is closest to:

If a piece of metal has a hole in it and the metal is heated,how does the area of the hole change?

Representing Motion

Motion in One Dimension

Vectors and Motion in Two Dimensions

Forces and Newtons Laws of Motion

Applying Newtons Laws

Circular Motion,orbits,and Gravity

Rotational Motion

Equilibrium and Elasticity

Momentum

Energy and Work

Using Energy

Fluids

Oscillations

Traveling Waves and Sound

Superposition and Standing Waves

Wave Optics

Ray Optics

Optical Instruments

Electric Fields and Forces

Electric Potential

Current and Resistance

Circuits

Magnetic Fields and Forces

Electromagnetic Induction and Electromagnetic Waves

Ac Electricity

Relativity

Quantum Physics

Atoms and Molecules

Nuclear Physics

Filters

52 g of methane (CH₄)contain 3.25 moles of this gas.

The figure shows a PV diagram for 8.3 g of nitrogen gas in a sealed container.The temperature of state 1 is 79°C.What are (a)pressure p₁ and (b)temperature T₂?

A cylinder fitted with a movable piston contains ideal gas at 27°C,pressure 0.50 x 10⁵ Pa and volume 1.25 m³.What will be the final temperature if the gas is compressed to 0.80 m³ and the pressure rises to 0.82 × 10⁵ Pa?

A 2294 kg sample of water at 0°C is cooled to -36ºC,and freezes in the process.How much heat is liberated? (For water L_f = 334 kJ/kg and L_v = 2257 kJ/kg.The specific heat for ice is 2050 J/kg · K. )

A monatomic ideal gas (C_v = 3/2 R)undergoes an isothermal expansion at 300 K,as the volume increased from 0.05 m³ to 0.15 m³.The final pressure is 130 kPa.The heat transfer to the gas,in kJ,is closest to: