Test: Kinetic Theory - 2

Question 1

Kinetic theory explains the behavior

Accepted Answer

of gases based on the idea that the gas consists of rapidly moving atoms or molecules

Answer

of liquids based on the idea that the liquids consist of rapidly moving atoms or molecules

Answer

of solids based on the idea that the solid consists of rapidly vibrating atoms or molecules

Answer

of solids and liquids based on the idea that they gas consist of rapidly vibrating atoms or molecules

Question 2

The number of degrees of freedom a diatomic molecule is

Accepted Answer

5.0

Answer

6

Answer

3

Answer

5.3

Question 3

Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic). The number of molecules

Accepted Answer

is the same in all three vessels

Answer

is the greatest in the vessel with neon

Answer

is the greatest in the vessel with chlorine

Answer

is the greatest in the vessel with uranium hexafluoride

Question 4

One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the new temperature of the gas

Accepted Answer

316 K

Answer

333 K

Answer

343 K

Answer

301 K

Question 5

Kinetic theory

Accepted Answer

correctly explains specific heat capacities of many gases

Answer

correctly explains specific heat capacities of super cooled liquids

Answer

correctly explains specific heat capacities of many solids

Answer

correctly explains specific heat capacities of many liquids

Question 6

The number of degrees of freedom a monatomic molecule is

Accepted Answer

3.0

Answer

2

Answer

1

Answer

4

Question 7

Calculate the change in internal energy of 3.00 mol of helium gas when its temperature is increased by 2.00 K.

Accepted Answer

75.0 J

Answer

85.0 J

Answer

95.0 J

Answer

65.0 J

Question 8

One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the work done on the gas.

Accepted Answer

200 J

Answer

123 J

Answer

231 J

Answer

333 J

Question 9

Kinetic theory relates measurable properties.

Accepted Answer

of gases such as viscosity, conduction and diffusion with molecular parameters, yielding estimates of molecular sizes and masses

Answer

of liquids such as viscosity, conduction and diffusion with molecular parameters, yielding estimates of molecular sizes and masses

Answer

of super cooled liquids such as viscosity, creep and diffusion with molecular parameters, yielding estimates of molecular sizes and masses

Answer

of solids such as expansion, conduction and elongation with molecular parameters, yielding estimates of molecular sizes and masses

Question 10

Mean free path is the

Accepted Answer

average distance between collisions

Answer

maximum distance between collisions

Answer

minimum distance between collisions

Answer

(maximum distance + minimum distance )/ 2 between collisions

Question 11

According to Atomic Hypothesis:

Accepted Answer

All things are made of atoms - little particles that move around in perpetual motion

Answer

All things are made of atoms - little particles that keep oscillating

Answer

All things are made of atoms - little particles that stay put at fixed points

Answer

All things are made of atoms - little particles that move around in circles

Question 12

1 mole of a monoatomic gas is mixed with 3 moles of a diatomic gas. What is the molecular specific heat of the mixture at constant volume?

Accepted Answer

18.7 J / mol K

Answer

12.5 J / mol K

Answer

15.2 J / mol K

Answer

22.6 J / mol K

Question 13

According to Avogadro’s law:

Accepted Answer

Equal volumes of all gases at equal temperature and pressure have the same number of molecules.

Answer

Equal volumes of all gases at equal temperature and pressure have different number of molecules.

Answer

Equal volumes of all gases at equal temperature have the same number of molecules.

Answer

Equal volumes of all gases at equal pressure have the same number of molecules.

Question 14

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the energy transferred by heat to the gas

Accepted Answer

3.49 kJ

Answer

3.86 kJ

Answer

3.66 kJ

Answer

3.26 kJ

Question 15

In which case are the atoms relatively rigidly fixed?

Accepted Answer

solids

Answer

gases

Answer

liquids and gases

Answer

liquids

Question 16

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the increase in its internal energy.

Accepted Answer

2.49 kJ

Answer

2.65 kJ

Answer

2.15 kJ

Answer

2.85 kJ

Question 17

Two moles of an ideal gas (γ=1.4) expands slowly and adiabatically from a pressure of 5.00 atm and a volume of 12.0 L to a final volume of 30.0 L. What is the final pressure of the gas?

Accepted Answer

1.39 atm

Answer

1.59 atm

Answer

1.09 atm

Answer

1.19 atm

Question 18

The average distance a molecule can travel without colliding is called the

Accepted Answer

mean free path

Answer

mean free length

Answer

mean free distance

Answer

mean free motion

Question 19

According to Atomic Hypothesis: little particles of atom

Accepted Answer

attract each other when they are at small distance apart, but repel upon being squeezed into one another

Answer

repel each other when they are at small distance apart, but attract upon being squeezed into one another

Answer

repel each other when they are at small distance apart, but repel upon being squeezed into one another

Answer

repel each other when they are at large distance apart, but attract upon being separated from one another

Question 20

In dynamic equilibrium, molecules collide and change their speeds during the collision

Accepted Answer

but the average properties are constant.

Answer

but the average properties vary.

Answer

but the peak properties vary.

Answer

but the r.m.s properties vary.

Question 21

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the work done by the gas.

Accepted Answer

0.98kJ

Answer

1.27 kJ

Answer

1.11 kJ

Answer

0.93 kJ

Question 22

The average kinetic energy of a molecule

Accepted Answer

is proportional to the absolute temperature of the gas

Answer

is inversely proportional to the absolute temperature of the gas

Answer

is inversely proportional to the molecular mass of the gas

Answer

is not dependent on absolute temperature of the gas

Question 23

Figure shows plot of PV/T versus P for 1.00x10^-3 kg of oxygen gas at two different temperatures. What is the value of PV/T where the curves meet on the y-axis?

Accepted Answer

0.26 J K⁻¹

Answer

0.24 J K⁻¹

Answer

0.22 J K⁻¹

Answer

0.28 J K⁻¹

Question 24

Nine particles have speeds of 5.00, 8.00, 12.0, 12.0, 12.0, 14.0, 14.0, 17.0, and 20.0 m/s. find the particles’ average speed.

Accepted Answer

12.7 m/s

Answer

16.7 m/s

Answer

10.7 m/s

Answer

8.7 m/s

Question 25

What is the root-mean-square speed of helium atoms in a balloon of diameter 30.0 cm at 20.0⁰C and 1.00 atm?

Accepted Answer

1.35 km/s

Answer

1.49 km/s

Answer

1.57 km/s

Answer

1.15 km/s

Question 26

Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapor and other constituents) in a room of capacity 25.0 m³ at a temperature of 27⁰C and 1 atm pressure.

Accepted Answer

6.10 x 10²⁶

Answer

6.50 x 10²⁶

Answer

6.60 x 10²⁶

Answer

6.30 x 10²⁶

Question 27

In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600 m² at an angle of 45.0° to the window surface. Each hailstone has a mass of 5.00 g and a speed of 8.00 m/s. If the collisions are elastic, what is the pressure on the window?

Accepted Answer

1.57 Pa

Answer

1.97 Pa

Answer

1.13 Pa

Answer

1.32 Pa

Question 28

Four liters of a diatomic ideal gas ( λ =1.4) confined to a cylinder is subject to a closed cycle. Initially, the gas is at 1.00 atm and at 300 K. First, its pressure is tripled under constant volume. Then, it expands adiabatically to its original pressure. Finally, the gas is compressed isobarically to its original volume. Find the temperature at the end of the cycle

Accepted Answer

300 K

Answer

276 K

Answer

285 K

Answer

332 K

Question 29

An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature 27°C. The mass of the oxygen withdrawn from the cylinder is nearly equal to:
[Given, R=100/12 J mol⁻¹K⁻¹, and molecular mass of O₂=32, 1 atm pressure = 1.01×10⁵ N/m².

Accepted Answer

0.116 kg

Answer

0.125 kg

Answer

0.144 kg

Answer

0.156 kg

Question 30

The molecule of a monatomic gas has only three translational degrees of freedom. Thus, the average energy of a molecule at temperature 'T' is __________.

Accepted Answer

(3/2)kBT

Answer

3kB&#8203;T

Answer

(1/3)kB&#8203;T

Answer

(3/4)kBT

Kinetic Theory - 2 - Free MCQ Practice Test with solutions, NEET Physics

MCQ Practice Test & Solutions: Test: Kinetic Theory - 2 (30 Questions)

Kinetic theory explains the behavior

The number of degrees of freedom a diatomic molecule is

Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic). The number of molecules

One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the new temperature of the gas

Kinetic theory

The number of degrees of freedom a monatomic molecule is

Calculate the change in internal energy of 3.00 mol of helium gas when its temperature is increased by 2.00 K.

One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the work done on the gas.

Kinetic theory relates measurable properties.

Mean free path is the

According to Atomic Hypothesis:

1 mole of a monoatomic gas is mixed with 3 moles of a diatomic gas. What is the molecular specific heat of the mixture at constant volume?

According to Avogadro’s law:

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the energy transferred by heat to the gas

In which case are the atoms relatively rigidly fixed?

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the increase in its internal energy.

Two moles of an ideal gas (γ=1.4) expands slowly and adiabatically from a pressure of 5.00 atm and a volume of 12.0 L to a final volume of 30.0 L. What is the final pressure of the gas?

The average distance a molecule can travel without colliding is called the

According to Atomic Hypothesis: little particles of atom

In dynamic equilibrium, molecules collide and change their speeds during the collision

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the work done by the gas.

The average kinetic energy of a molecule

Figure shows plot of PV/T versus P for 1.00x10^-3 kg of oxygen gas at two different temperatures. What is the value of PV/T where the curves meet on the y-axis?

Nine particles have speeds of 5.00, 8.00, 12.0, 12.0, 12.0, 14.0, 14.0, 17.0, and 20.0 m/s. find the particles’ average speed.

What is the root-mean-square speed of helium atoms in a balloon of diameter 30.0 cm at 20.0⁰C and 1.00 atm?

Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapor and other constituents) in a room of capacity 25.0 m³ at a temperature of 27⁰C and 1 atm pressure.

In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600 m² at an angle of 45.0° to the window surface. Each hailstone has a mass of 5.00 g and a speed of 8.00 m/s. If the collisions are elastic, what is the pressure on the window?

The molecule of a monatomic gas has only three translational degrees of freedom. Thus, the average energy of a molecule at temperature 'T' is __________.

Physics Class 11

Physics Class 11

Top Courses for NEET

About this NEET Practice Test

Explore more NEET Study Resources

Kinetic Theory - 2 - Free MCQ Practice Test with solutions, NEET Physics

MCQ Practice Test & Solutions: Test: Kinetic Theory - 2 (30 Questions)

Kinetic theory explains the behavior

The number of degrees of freedom a diatomic molecule is

Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains neon (monatomic), the second contains chlorine (diatomic), and the third contains uranium hexafluoride (polyatomic). The number of molecules

One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the new temperature of the gas

Kinetic theory

The number of degrees of freedom a monatomic molecule is

Calculate the change in internal energy of 3.00 mol of helium gas when its temperature is increased by 2.00 K.

One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the work done on the gas.

Kinetic theory relates measurable properties.

Mean free path is the

According to Atomic Hypothesis:

1 mole of a monoatomic gas is mixed with 3 moles of a diatomic gas. What is the molecular specific heat of the mixture at constant volume?

According to Avogadro’s law:

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the energy transferred by heat to the gas

In which case are the atoms relatively rigidly fixed?

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the increase in its internal energy.

Two moles of an ideal gas (γ=1.4) expands slowly and adiabatically from a pressure of 5.00 atm and a volume of 12.0 L to a final volume of 30.0 L. What is the final pressure of the gas?

The average distance a molecule can travel without colliding is called the

According to Atomic Hypothesis: little particles of atom

In dynamic equilibrium, molecules collide and change their speeds during the collision

One mole of hydrogen gas is heated at constant pressure from 300 K to 420 K. Calculate the work done by the gas.

The average kinetic energy of a molecule

Figure shows plot of PV/T versus P for 1.00x10-3 kg of oxygen gas at two different temperatures. What is the value of PV/T where the curves meet on the y-axis?

Nine particles have speeds of 5.00, 8.00, 12.0, 12.0, 12.0, 14.0, 14.0, 17.0, and 20.0 m/s. find the particles’ average speed.

What is the root-mean-square speed of helium atoms in a balloon of diameter 30.0 cm at 20.00C and 1.00 atm?

Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapor and other constituents) in a room of capacity 25.0 m3 at a temperature of 270C and 1 atm pressure.

In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600 m2 at an angle of 45.0° to the window surface. Each hailstone has a mass of 5.00 g and a speed of 8.00 m/s. If the collisions are elastic, what is the pressure on the window?

The molecule of a monatomic gas has only three translational degrees of freedom. Thus, the average energy of a molecule at temperature 'T' is __________.

Physics Class 11

Physics Class 11

Top Courses for NEET

About this NEET Practice Test

Explore more NEET Study Resources

Figure shows plot of PV/T versus P for 1.00x10^-3 kg of oxygen gas at two different temperatures. What is the value of PV/T where the curves meet on the y-axis?

What is the root-mean-square speed of helium atoms in a balloon of diameter 30.0 cm at 20.0⁰C and 1.00 atm?

Estimate the total number of air molecules (inclusive of oxygen, nitrogen, water vapor and other constituents) in a room of capacity 25.0 m³ at a temperature of 27⁰C and 1 atm pressure.

In a 30.0-s interval, 500 hailstones strike a glass window with an area of 0.600 m² at an angle of 45.0° to the window surface. Each hailstone has a mass of 5.00 g and a speed of 8.00 m/s. If the collisions are elastic, what is the pressure on the window?