Question

Calculate the theoretical maximum efficiency of a heat engine operating between $373K$ and $173K$.

• A. $43.6$%
• B. $33.6$%
• C. $63.6$%
• D. $53.6$%

Answer 1

The correct option is D $53.6$%

Maximum efficiency of heat engine is given as

%efficiency = $\frac{T_{higher}-T_{lower}}{T_{higher}}\ast 100$

%efficiency = $\frac{373-173}{373}\ast 100=53.6$