Which of the following statements must be true for the entropy of a pure solid to be zero? I.The temperature must be 0 K.
II.The solid must be crystalline,not amorphous.
III.The solid must be perfectly ordered.
IV.The solid must be an element.

Question

Quizplus · Accepted Answer

For the entropy of a pure solid to be zero, it must be at 0 Kelvin (I), be crystalline (II), and perfectly ordered (III). The identity of the solid (IV) does not necessarily impact the entropy, so it is not a requirement for the entropy to be zero.

Which of the Following Statements Must Be True for the Entropy