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JEE PHYSICS MCQ: KINETIC THEORY OF GASES
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Consider the following statement.
The internal energy of an ideal monoatomic gas may have contributions from
1. translational kinetic energy of its molecules.
2. vibrational kinetic energy of its molecules.
3. rotational kinetic energy of its molecules.
4. potential energy corresponding to molecular forces.
Which of the statements given above is/are correct?
The internal energy of an ideal monoatomic gas may have contributions from
1. translational kinetic energy of its molecules.
2. vibrational kinetic energy of its molecules.
3. rotational kinetic energy of its molecules.
4. potential energy corresponding to molecular forces.
Which of the statements given above is/are correct?
View answer and explanation
Correct option: C
1 only
Option C (1 only) is correct because an ideal monoatomic gas only has translational kinetic energy; it lacks vibrational, rotational, and intermolecular potential energy.
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Assertion: The pressure exerted by an enclosed ideal gas does not depend on the shape of the container.
Reason: The pressure of an ideal gas depends on the number moles, temperature and volume of the enclosed If is the velocity of sound in air and is the rms velocity, then Four particles have velocities . The root mean square of the particles is (in ) The translational degrees of freedom and rotational degrees of freedom of molecule are: On any planet, the presence of atmosphere implies (= root mean square velocity of molecules and escape velocity) At a given temperature, the pressure of an ideal gas of density is proportional to
Reason: The pressure of an ideal gas depends on the number moles, temperature and volume of the enclosed If is the velocity of sound in air and is the rms velocity, then Four particles have velocities . The root mean square of the particles is (in ) The translational degrees of freedom and rotational degrees of freedom of molecule are: On any planet, the presence of atmosphere implies (= root mean square velocity of molecules and escape velocity) At a given temperature, the pressure of an ideal gas of density is proportional to