Question 517: Thermodynamics & KTG

Question

A Carnot engine, whose efficiency is $$40\% $$, takes in heat from a source maintained at a temperature of $$500$$ $$K.$$ It is desired to have an engine of efficiency $$60\% .$$ Then, the intake temperature for the same exhaust (sink) temperature must be :

Accepted Answer

$$0.4 = 1 - {{{T_2}} \over {500}}\,\,\,\,$$ and $$\,\,\,\,0.6 = 1 - {{{T_2}} \over {{T_1}}}$$
on solving we get $${T_2} = 750\,K$$

Answer

efficiency of Carnot engine cannot be made larger than $$50\% $$

Answer

$$1200$$ $$K$$

Answer

$$750$$ $$K$$

Answer

$$600$$ $$K$$

Thermodynamics & KTG

A Carnot engine, whose efficiency is $40\% , takes in heat from a source maintained at a temperature of 500 K. It is desired to have an engine of efficiency 60\% .$ Then, the intake temperature for the same exhaust (sink) temperature must be :

Choose the correct answer: