Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 6, Problem 20CTQ

Imagine an elaborate ant farm with tunnels and passageways through the sand where ants live in a large community. Now imagine that an earthquake shook the ground and demolished the ant farm. In which of these two scenarios, before or after the earthquake, was the ant farm system in a state of higher or lower entropy?

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Imagine you are working in a lab, and you are performing two chemical reactions. You notice that Reaction A occurs much faster than Reaction B, and that both reactions release the same amount of heat. Which of the following conclusions can be made from your observation? Reaction A has the same activation energy as Reaction B, and the AG of Reaction A is more negative (i.e., a larger negative number) than the AG for Reaction B. Reaction A has a lower activation energy than Reaction B, and the AG of Reaction A is the same as the AG of Reaction B. Reaction A has a higher activation energy than Reaction B, and the AG of Reaction A is the same as the AG of Reaction B. Reaction A has the same activation energy as Reaction B, and the AG of Reaction A is less negative (i.e., a smaller negative number) than the AG for Reaction B.
Suppose that a homebuilder installs electric baseboard heat and claims, “It is the cheapest and cleanest way to go.” Apply your understanding of the second law of thermodynamics (see Chapter 2) and net energy yield (see Figure 15-2) to evaluate this claim. Write a response to the homebuilder summarizing your findings.
Which of the following defines the first law of thermodynamics?   A. Energy cannot be created or destroyed   B. The capacity to do work   C. The energy stored in the arrangement of objects in a system   D. Energy tends to disperse spontaneously

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