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nikdorinn [45]
3 years ago
5

What is the approximate theoretical maximum efficiency of a heat engine receiving heat at 627°C and rejecting heat to 27°c? a)-2

3.2 b)-0.96 c)-0.04 d)-0.33 e)-0.66
Engineering
1 answer:
AysviL [449]3 years ago
5 0

Answer:

The correct option is  (e) η = 0.66

Explanation:

given data:

temperature at entry is 627 degree C

temperature at exit is 27 degree C

the efficiency of a engine is given as η

\eta = (1-\frac{T_{L}}{T_{H}})*100

where T_{L} is temperature in kelvin at exit point

          T_{H} is temperature in kelvin at entry point

\eta = (1-\frac{27+273}{627+273})*100

η = 66.66 %

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