Which of the following statements concerning entropy is not correct?
A) The entropy of a system increases as the number of available microstates increases.
B) The entropy of a system is proportional to the natural log of the number of microstates.
C) In a spontaneous process,ΔS(universe)indicates the extent to which energy is dispersed.
D) The dispersal of matter,such as the spontaneous expansion of a gas,cannot be explained by an increase in entropy.
E) Entropy is a measure of the extent of energy dispersal.

Question

Quizplus · Accepted Answer

The statement "The dispersal of matter,such as the spontaneous expansion of a gas,cannot be explained by an increase in entropy" is not correct. The spontaneous expansion of a gas is a clear example of an increase in entropy, as the number of available microstates (positions and velocities of gas molecules) increases. Thus, the correct statement should be that the dispersal of matter, such as the spontaneous expansion of a gas, is an example of an increase in entropy.

Which of the Following Statements Concerning Entropy Is Not Correct