Suppose you had 10 identical molecules enclosed by a box At

Suppose you had 10 identical molecules enclosed by a box. At a given instant, one molecule has an energy of 100 Joules, and the others are all stationary.

(A) What is the average kinetic energy of the 10 molecules?
(B) Is this a situation of high or low entropy?
(C) What happens to the energy and entropy of the molecules in the box as time passes? Does your answer depend on the insulation of the box?

Solution

Here ,

enegry , E = 100 J

number of molecules , n = 10

a) average kinetic energy = total E/n

average kinetic energy = 100/10 J

average kinetic energy = 10 J

B) in this situation , the entropy is low

C) as the time passes , the energy of the moving molecule wil get distributed to other molecules also.

and the entropy of the molecules will increase as the time passes