Work, Power and EnergyHard
Question
A vessel contains a mixture of one mole of oxygen and two moles of nitrogen at 300 K. The ratio of the average rotational kinetic energy per O2 molecule to that per N2 molecule is :-
Options
A.1 : 1
B.1 : 2
C.2 : 1
D.Depends on the moments of inertia of the two molecules
Solution
Average kinetic energy per molecule per degree of freedom = 1/2 kT. Since both the gases are diatomic and at same temperature (300K), both will have the same number of rotational degree of freedom i.e. two. Therefore, both the gases will have the same average rotational kinetic energy per molecule
. Thus 
. Thus Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
A bullet of mass m moving with velocity v strikes a block of mass M at rest and gets embedded into it. The kinetic energ...An object is projected with kinetic energy K from a point A at an angle $60^{\circ}$ with the horizontal. The ratio of t...In the following indicator diagram, the net amount of work done will be :-...The work done on a particle of mass m by a force, (K being a constant of appropriate dimensions), when the particle is t...A heater is designed to operate with a power of 1000W in a 100V line. It is connected in combination with a resistance o...