Behavior of Perfect Gas and Kinetic Theory
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Equation of State of a Perfect Gas
SubtopicEquation of State of a Perfect Gas under Behavior of Perfect Gas and Kinetic Theory for Grade 11 ICSE.
Preview questions (no answers)
- 1.
What is the approximate value of the Boltzmann constant in SI units?
A.B.C.D. - 2.
In the gas equation , has the same value for:
A.Only Oxygen and Hydrogen
B.All ideal gases
C.Only monatomic gases
D.Only diatomic gases
- 3.
If is the volume of 1 mole of gas, the expression equals:
A.B.C.D. - 4.
Which of the following is equivalent to 1 bar of pressure?
A.B.C.D. - 5.
An ideal gas is compressed at constant temperature. This implies that the product :
A.Increases
B.Decreases
C.Remains constant
D.Initially increases and then decreases
- 6.
According to the Kinetic Theory, which temperature scale must be used in the gas law equations?
A.Celsius scale
B.Fahrenheit scale
C.Kelvin (Absolute) scale
D.Rankine scale
- 7.
The correct relationship between the pressure and kinetic energy per unit volume of an ideal gas is:
A.B.C.D. - 8.
A vessel is filled with a mixture of two gases and . The number of moles of is double the number of moles of . If the total pressure is , the partial pressure of gas is:
A.B.C.D. - 9.
For a certain gas, the ratio is . If the molar mass of the gas is , the constant is equal to:
A.B.C.D. - 10.
The temperature of an ideal gas is increased from to . The velocity of the molecules becomes:
A.Twice
B.Four times
C.Half
D.Three times
Download the worksheet for Behavior of Perfect Gas and Kinetic Theory - Equation of State of a Perfect Gas to practice offline. It includes additional chapter-level practice questions.
Kinetic Theory of Gases (Pressure, Temperature and RMS Speed)
SubtopicKinetic Theory of Gases (Pressure, Temperature and RMS Speed) under Behavior of Perfect Gas and Kinetic Theory for Grade 11 ICSE.
Preview questions (no answers)
- 1.
According to the kinetic theory, the pressure of a gas is due to the change in what quantity when molecules hit the walls?
A.Mass
B.Volume
C.Momentum
D.Potential Energy
- 2.
The expression for the RMS speed in terms of pressure and density is:
A.B.C.D. - 3.
Which of the following relates the partial pressures of non-reacting gases in a mixture?
A.Boyle's Law
B.Charles' Law
C.Dalton's Law
D.Graham's Law
- 4.
The ratio of the average kinetic energy of Hydrogen molecules to Oxygen molecules at is:
A.1:1
B.1:16
C.1:4
D.16:1
- 5.
Which of the following expressions represents the root mean square speed of a gas molecule in terms of Boltzmann constant , temperature , and mass of one molecule ?
A.sqrt(kT/m)
B.sqrt(2kT/m)
C.sqrt(3kT/m)
D.sqrt(8kT/pi m)
- 6.
The internal energy of an ideal gas consists entirely of:
A.Rotational kinetic energy
B.Translational kinetic energy
C.Potential energy
D.Vibrational energy
- 7.
The average speed of gas molecules is defined as the:
A.Square root of the mean of squares of speeds
B.Arithmetic mean of the speeds of all molecules
C.Speed possessed by the maximum number of molecules
D.Geometric mean of the speeds
- 8.
The total translational kinetic energy of all the molecules of Helium in a container is . If the same container is filled with the same number of moles of Nitrogen at the same temperature, the total translational kinetic energy will be:
A.B.C.D. - 9.
The average kinetic energy of a gas molecule at is . At what temperature will the average kinetic energy be ?
A.B.C.D. - 10.
An ideal gas is at temperature . If the temperature is increased to , the factor by which the number of collisions per unit time with the walls of the container increases (assuming constant volume) is:
A.B.C.D.
Download the worksheet for Behavior of Perfect Gas and Kinetic Theory - Kinetic Theory of Gases (Pressure, Temperature and RMS Speed) to practice offline. It includes additional chapter-level practice questions.
Degrees of Freedom
SubtopicDegrees of Freedom under Behavior of Perfect Gas and Kinetic Theory for Grade 11 ICSE.
Preview questions (no answers)
- 1.
The ratio is characteristic of which type of gas?
A.Diatomic
B.Monoatomic
C.Triatomic linear
D.Triatomic non-linear
- 2.
Which of the following gases is most likely to have 3 degrees of freedom at room temperature?
A.Oxygen
B.Nitrogen
C.Argon
D.Chlorine
- 3.
The degrees of freedom for a triatomic linear molecule including vibration (high temp) are typically:
A.5
B.6
C.7
D.9
- 4.
What is the average kinetic energy of a gas molecule with degrees of freedom at temperature ?
A.B.C.D. - 5.
If the internal energy of a gas is given by , what is the molar specific heat at constant pressure ?
A.B.C.D. - 6.
What is the value of the ratio for a gas whose molecules have 7 degrees of freedom?
A.1.40
B.1.28
C.1.33
D.1.67
- 7.
What is the molar specific heat at constant volume () for a gas with ?
A.B.C.D. - 8.
How many degrees of freedom does a rigid, non-linear molecule with atoms have if there are no vibrational modes?
A.B.C.D. - 9.
A container contains 1 mole of a monoatomic gas and 2 moles of a diatomic gas. If the temperature of the mixture is increased by at constant volume, the total heat supplied is:
A.B.C.D. - 10.
A gas molecule with 5 degrees of freedom at is heated to , where its degrees of freedom become 7. The ratio of final internal energy to initial internal energy is:
A.14/3
B.7/3
C.70/15
D.14/3 is incorrect, it's 70/15 which is 14/3? No.
Download the worksheet for Behavior of Perfect Gas and Kinetic Theory - Degrees of Freedom to practice offline. It includes additional chapter-level practice questions.
Specific Heat Capacities of Gases
SubtopicSpecific Heat Capacities of Gases under Behavior of Perfect Gas and Kinetic Theory for Grade 11 ICSE.
Preview questions (no answers)
- 1.
The number of degrees of freedom for a triatomic non-linear molecule is:
A.3
B.5
C.6
D.8
- 2.
Which of the following is a dimensionless quantity?
A.B.C.D. - 3.
If a gas has , its value is:
A.B.C.D. - 4.
In the formula , the units of must be the same as:
A.Pressure
B.Temperature
C.Molar heat capacity
D.Volume
- 5.
The molar specific heat of an ideal gas at constant pressure is . What is the heat required to raise the temperature of 'm' grams of the gas (molecular weight ) by ?
A.B.C.D. - 6.
If one mole of a monatomic gas is mixed with one mole of a polyatomic gas (), the of the mixture is:
A.B.C.D. - 7.
For a gas having degrees of freedom, the energy per degree of freedom per molecule is:
A.B.C.D. - 8.
If the molar specific heat at constant pressure for an ideal gas is , what is the value of the polytropic index for a process in which the molar heat capacity is ?
A.B.C.D. - 9.
A diatomic gas molecule is not rigid and has an additional vibrational degree of freedom. If heat is supplied to it at constant volume, what is the ratio of rotational kinetic energy to the total internal energy?
A.B.C.D. - 10.
The internal energy of mole of a gas is given by . What is the molar heat capacity at constant volume?
A.B.C.D.
Download the worksheet for Behavior of Perfect Gas and Kinetic Theory - Specific Heat Capacities of Gases to practice offline. It includes additional chapter-level practice questions.