Correct Answer - Option 3 : 75%
Concept:
-
Carnot engine: A theoretical thermodynamic cycle proposed by Leonard Carnot. This engine gives the maximum possible efficiency that a heat engine can have during the conversion process of heat into work or vice-versa, working between two reservoirs.
- So practically and theoretically there can not be any engine with more efficiency than Carnot engine.
The efficiency of the Carnot's Heat engine is given by:
\(η=1-\frac{T_L}{T_H}\)
Where TH is the hot reservoir temperature and TL is the cold reservoir temperature.
Calculation:
Given:
TH = 1000 K, TL = 250 K
\(\eta =1- \frac{250}{1000}=75\%\)
- The efficiency of this type of engine does not depend on the nature of the working substance and is only dependent on the temperature of the hot and cold reservoirs.
