Twenty-Five Identical Molecules Are in a Box

question 42

Multiple Choice

Twenty-five identical molecules are in a box. Microstates are designated by identifying the molecules in the left and right halves of the box. The Boltzmann constant is 1.38 * 10^-23 J/K. The entropy associated with the configuration for which 15 molecules are in the left half and 10 molecules are in the right half is:

• A) 2.07 *10^-22 J/K
• B) 7.31 * 10^-22 J/K
• C) 4.44 * 10^-23 J/K
• D) 6.91 *10^-23 J/K
• E) 2.22 *10^-23 J/K

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Definitions:

Pleural Fluid

A liquid that fills the space between the layers of the pleura, the membrane surrounding the lungs, acting as a lubricant.

Parietal Pleura

The part of the pleura that lines the inner surface of the chest wall and diaphragm, playing a role in the breathing process.

Visceral Pleura

Serous membrane investing the lungs and dipping into the fissures between the several lobes.

Alveoli

Alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.