The thermal efficiency of an ideal Rankine cycle is: a) always less than the thermal efficiency of a Carnot cycle functioning between the same temperatures. b) always equal to the thermal efficiency of a Carnot cycle functioning between the same temperatures. c) always more than the thermal efficiency of a Carnot cycle functioning between the same temperatures. d) less than the thermal efficiency of a Carnot cycle functioning between the same temperatures only if irreversibilities in the turbine and pump present.

Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter3: The Second And Third Laws Of Thermodynamics
Section: Chapter Questions
Problem 3.65E
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The thermal efficiency of an ideal Rankine
cycle is:
a) always less than the thermal efficiency of
a Carnot cycle functioning between the
same temperatures.
b) always equal to the thermal efficiency of a
Carnot cycle functioning between the same
temperatures.
c) always more than the thermal efficiency of
a Carnot cycle functioning between the
same temperatures.
d) less than the thermal efficiency of a
Carnot cycle functioning between the same
temperatures only if irreversibilities in the
turbine and pump present.
Transcribed Image Text:The thermal efficiency of an ideal Rankine cycle is: a) always less than the thermal efficiency of a Carnot cycle functioning between the same temperatures. b) always equal to the thermal efficiency of a Carnot cycle functioning between the same temperatures. c) always more than the thermal efficiency of a Carnot cycle functioning between the same temperatures. d) less than the thermal efficiency of a Carnot cycle functioning between the same temperatures only if irreversibilities in the turbine and pump present.
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