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Objective: To compare the entropy of two different states and to
identify the entropy change of a process as a positive or a negative
change.
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Pick from among the three activities -
2 Truths and 1 Lie, Case Studies, and Entropy Change.
Case Studies
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2 Truths, 1 Lie
3 Questions
Given three statements about entropy, identify the false statement.
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Case Studies
6 Questions
Given a description of two systems, compare their relative entropy.
2 Truths, 1 Lie
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Entropy Change
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Entropy Change
6 Questions
Given a description of a process, identify it as either an incease or
decrease in entropy.
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Two Truths and a Lie Activity. You have earned the Trophy.
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Entropy Change Activity. You have earned the Trophy.
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Case Studies. You have earned the Trophy.
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Consider the three statements. Two are true. One is false. Select
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Two Truths and a Lie
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Case A
Case B
Tap a button to select/deselect an answer to … In which case is
the entropy the greatest? Tap the Check Answer button when satisfied
with your answer.
Tap a button to select/deselect an answer to … Will the entropy
change (∆S) be positive (increase) or negative (decrease)? Tap the
Check Answer button when satisfied with your answer.
Entropy Change
Consider the process or change shown below. Will the entropy
change (∆S) be positive or negative?
Positive ∆S
Negative ∆S