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Thermodynamics
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Thermodynamics Miscellaneous
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Thermodynamics Miscellaneous
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Thermodynamics
Thermodynamics Miscellaneous
A solar energy based heat engine which receives 80 kJ of heat at 100°C and rejects 70 kJ of heat to the ambient at 30°C is to be designed. The thermal efficiency of the heat engine is
70%
18.8%
12.5%
Indetermine
Correct Option:
C
η
th
=
( 80 - 70 )
× 100 =
1
× 100 = 12.5%
80
8
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