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Physics of Everyday Phenomena, 6/e
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Heat Engines and the Second Law of Thermodynamics
Mastery Quiz
1
A heat engine
A)
converts all the heat supplied to it to mechanical work
B)
always rejects some heat to a lower temperature reservoir
C)
only needs one reservoir to operate
2
The efficiency of a heat engine is given by
A)
W/Q
H
B)
W/Q
L
C)
Q
H
/Q
D)
Q
H
/W
3
In an adiabatic process
A)
temperature is constant
B)
pressure is constant
C)
heat only flows into the system
D)
no heat flows into or out of the system
E)
heat only flows out of the system
4
The most efficient engine operating between two temperatures is a(n)
engine.
5
In calculating the efficiency of a Carnot engine the temperatures used must be expressed using the
scale.
6
The Kelvin form of the second law of thermodynamics states that
A)
an engine can take heat from a single reservoir and convert it all to work
B)
no engine can take heat from a single reservoir and convert it all to work
C)
an engine can have a greater efficiency than a Carnot engine
7
The Clausius form of the second law of thermodynamics states that
A)
it is impossible to make heat flow from a colder to a hotter body
B)
heat naturally flows from a colder to a hotter body
C)
heat will not flow from a colder to a hotter body unless some other effect is involved
8
The entropy of the universe
A)
is always decreasing
B)
is conserved
C)
is impossible to calculate
D)
can only increase or remain constant
9
A perpetual motion machine of the first kind
A)
violates the first law of thermodynamics
B)
would be a good investment
C)
violates the second law of thermodynamics
D)
violates the zeroth law of thermodynamics
10
A perpetual motion machine of the second kind
A)
violates the first law of thermodynamics
B)
would be a good investment
C)
violates the second law of thermodynamics
D)
violates the zeroth law of thermodynamics
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