Name: Kaelyn Gleason
College ID: 0679642
Thomas Edison State University
General Chemistry II with Labs (CHE-122)
Section no.: 122-009
Semester and year: OCT 2020
Written Assignment 9: Spontaneity Reactions
Answer all assigned questions and problems, and show all work.
How does the entropy of a system change for each of the following processes?
A solid sublimes:
Urea dissolves in water:
(Reference: Chang 17.5)
For each pair of substances listed here, choose the one having the larger standard
entropy value at 25ºC. The same molar amount is used in the comparison. Explain the
basis for your choice.
) or CH
Both molecules are in liquid phase.