Correct Response: D. The equation S = k × log W was derived by Boltzmann and expresses the relationship between entropy and the number of ways particles can be arranged. Because gas and liquid particles can be arranged in more ways than solid particles can, W will increase during the transition of solids to liquids to gases. A is incorrect, since the overall entropy (S) will increase because the particles of liquids are not arranged in a regular fashion. B is incorrect because k is a constant. C is incorrect because the constant k will not change and S and W will both increase.