24.6-24.7 Question Preview (ID: 5697)


Entropy. TEACHERS: click here for quick copy question ID numbers.

Once energy in an engine degenerates into nonuseful forms, it is unavailable to do the same work again.
a) True
b) False
c)
d)

As a system becomes more disordered, entropy
a) remains the same.
b) decreases.
c) increases.
d)

Systems that are left alone tend toward a state of
a) more entropy.
b) less entropy.
c) no entropy.
d)

Entropy is closely related to the
a) 1st Law of Thermodynamics
b) 2nd Law of Thermodynamics
c) 3rd Law of Thermodynamics
d)

The only way for a system that is disordered will become ordered again is by
a) increasing temperature
b) increasing entropy
c) doing work on it
d) doing no work on it

In buildings that are electrically heated, leaving the lights on
a) wastes energy.
b) doesn't waste energy.
c)
d)

Which of the following is NOT an example of entropy in action
a) gas expanding to fill a room
b) a stack of papers being blown off a table
c) a house deteriotating over time
d) a child picking up their toys

A sample of gas is contained in a sealed jar. Which of the following has the greatest entropy?
a) the sample at 25 degrees Celsius in the jar
b) the sample at 50 degrees Celsius in the jar
c) the sample immediately after opening the jar
d) the samples after it expands to fill the room

When a system becomes disordered, the probability of it becoming ordered again by its own means is
a) zero
b) very unlikely
c) very likely
d) 100 percent

The measure of the amount of disorder in a system
a) chaos
b) entropy
c) temperature
d) efficiency

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