Question 988: Thermodynamics & KTG

Question

A scientist says that the efficiency of his heat engine which work at source temperature 127
o
C and sink temperature 27
o
C is 26%, then

Accepted Answer

Efficiency is maximum in Carnot engine which is an ideal engine.
$$ \because \eta  = {{400 - 300} \over {400}} 	imes 100\%  = 25\% $$
$$ 	herefore $$  efficiency 26% is impossible for his heat engine.

Answer

it is impossible

Answer

it is possible but less probable

Answer

it is quite probable

Answer

data are incomplete.

Thermodynamics & KTG

A scientist says that the efficiency of his heat engine which work at source temperature 127 o C and sink temperature 27 o C is 26%, then

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