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For each of the processes, determine whether the entropy of the system is increasing or decreasing. The system is underlined. Entropy is increasing Entropy is decreasing Answer Bank a snowman melts on a spring day a water bottle cools down in a refrigerator iron rusts to iron oxide a document goes through a paper shredder dissolved sugar precipitates out of water to form rock candy

For each of the processes, determine whether the entropy of the system is increasing or decreasing. The system is underlined. Entropy is increasing Entropy is decreasing Answer Bank a snowman melts on a spring day a water bottle cools down in a refrigerator iron rusts to iron oxide a document goes through a paper shredder dissolved sugar precipitates out of water to form rock candy

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter13: Spontaneous Processes And Thermodynamic Equilibrium
Section: Chapter Questions
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For each of the processes, determine whether the entropy of the system is increasing or decreasing. The system is underlined. Entropy is increasing Entropy is decreasing Answer Bank a snowman melts on a spring day a water bottle cools down in a refrigerator iron rusts to iron oxide a document goes through a paper shredder dissolved sugar precipitates out of water to form rock candy
Transcribed Image Text:For each of the processes, determine whether the entropy of the system is increasing or decreasing. The system is underlined. Entropy is increasing Entropy is decreasing Answer Bank a snowman melts on a spring day a water bottle cools down in a refrigerator iron rusts to iron oxide a document goes through a paper shredder dissolved sugar precipitates out of water to form rock candy
Expert Solution
Step 1

Here are some points to easily identify the direction of change in entropy of physical processes-

  • Entropy is always assisted by the term "randomness" and "disorder". So, an increase in these two in any case will always be assisted with an increase in the entropy of the system,
  • So, from the above point, we can figure it out easily that, solid substances are more ordered and with least entropy, then comes liquid and at last the gases are the most disordered. So, on going from, solid>liquid then gas, entropy always increases,
  • Heating is always associated with an increase in entropy and cooling is associated with a decrease in entropy,
  • In general, spontaneous processes are associated with an increase in entropy of the system(though not always!) and the processes that involve any external force i.e. non-spontaneous processes are associated with decrease in entropy.
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