The internal energy of a gas contained in a movable box moving with a constant speed 
A
depends on 
B
does not depend on 
and
and
C
depends only on molecular energies
D
Both
Text Solution
Verified by ExpertsThe correct answer is:
D
The internal energy of a gas contained in a movable box, depends only on the molecular energies, i.e. it is the sum of the kinetic energies and potential energies of the molecules of gas.
The kinetic energy of the moving box is not included in the internal energy.
Thus, internal energy does not depend on the speed 
of the box.
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