An ideal Carnot heat engine with an efficiency of `30%`. It absorbs heat from a hot reservoir at `727^(@)C`. The temperature of the cold reservoir is

A Carnot engine has an efficiency of 0.40. The Kelvin temperature of its hot reservoir is quadrupled, and the Kelvin temperature of its cold reservoir is doubled. What is the efficiency that results from these changes?

Efficiency of a Carnot cycle is 75% .If temperature of the hot reservoir is 727^@C , calculate the temperature of the cold reservoir.

In Carnot engine, efficiency is 40% at hot reservoir temperature T. For efficiency 50% , what will be the temperature of hot reservoir?

In carnot engine efficiency is 40% at hot reservoir temperature T. For efficiency to be 50%, what will be the temperature of hot reservoir ?

In Carnot engine, efficiency is 40% at hot reservoir temperature T. For efficiency 50% , what will be the temperature of hot reservoir?

A heat engine operates between a cold reservoir at temperature T_(2)=400 K and a hot reservoir at temperature T . It takes 300 J of heat from the hot reservoir and delivers 240 J of heat to the cold reservoir in a cycle. The minimum temperature of the hot reservoir has to be _____________ K.