A block of copper is initially at T=500 K. As it cools to room temperature, 1000 J of heat flows out of it. Its entropy decreases by how much? More than 2 J/K 2 J/K O Less than 2 J/K
A block of copper is initially at T=500 K. As it cools to room temperature, 1000 J of heat flows out of it. Its entropy decreases by how much? More than 2 J/K 2 J/K O Less than 2 J/K
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Question 2
A block of copper is initially at T=500 K. As it cools to room temperature, 1000 J of heat flows out of
it. Its entropy decreases by how much?
More than 2 J/K
O 2 J/K
O Less than 2 J/K
Question 3
Which is the following is NOT a correct statement or corollary of the Third Law of Thermodynamics?
(You might need to consult Wikipedia.)
The residual entropy of a system at zero temperature must vanish
O Heat capacities approach zero as T->0
It is impossible for any process, no matter how idealized, to reduce the entropy of a system to its absolute-
zero value in a finite number of operations
The entropy of a system approaches a constant value as its temperature approaches absolute zero
The entropy change associated with any condensed system undergoing a reversible isothermal process
approaches zero as the temperature at which it is performed approaches absolute zero.
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