A number of Carnot engines are operated at identical cold reservoir temperatures (T_L ). However, their hot reservoir temperatures are kept different. A graph of the efficiency of the engines versus…

Question

A number of Carnot engines are operated at identical cold reservoir temperatures (T_L ). However, their hot reservoir temperatures are kept different. A graph of the efficiency of the engines versus hot reservoir temperature (T_H ) is plotted. The correct graphical representation is

Accepted Answer

Correct answer: B. (b) =1- T_LT_H where T_L= temperature of sink, T_H= temperature of source. So, at constant T_L, efficiency increases with increase in T_H.

$A number of Carnot engines are operated at identical cold reservoir temperatures (T_{L}) . However, their hot reservoir temperatures are kept different. A graph of the efficiency of the engines versus hot reservoir temperature (T_{H}) is plotted. The correct graphical representation is$

Solution

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