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24.6-24.7
Test Description: Entropy
Instructions: Answer all questions to get your test result.
1) Once energy in an engine degenerates into nonuseful forms, it is unavailable to do the same work again.
A
False
B
True
2) As a system becomes more disordered, entropy
A
decreases.
B
increases.
C
remains the same.
3) Systems that are left alone tend toward a state of
A
less entropy.
B
no entropy.
C
more entropy.
4) Entropy is closely related to the
A
2nd Law of Thermodynamics
B
1st Law of Thermodynamics
C
3rd Law of Thermodynamics
5) The only way for a system that is disordered will become ordered again is by
A
doing no work on it
B
increasing entropy
C
doing work on it
D
increasing temperature
6) In buildings that are electrically heated, leaving the lights on
A
doesn't waste energy.
B
wastes energy.
7) Which of the following is NOT an example of entropy in action
A
a child picking up their toys
B
gas expanding to fill a room
C
a stack of papers being blown off a table
D
a house deteriotating over time
8) A sample of gas is contained in a sealed jar. Which of the following has the greatest entropy?
A
the sample immediately after opening the jar
B
the sample at 25 degrees Celsius in the jar
C
the sample at 50 degrees Celsius in the jar
D
the samples after it expands to fill the room
9) When a system becomes disordered, the probability of it becoming ordered again by its own means is
A
zero
B
very unlikely
C
100 percent
D
very likely
10) The measure of the amount of disorder in a system
A
efficiency
B
temperature
C
chaos
D
entropy
*select an answer for all questions
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