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