Carnot engine takes in a thousand kilocalories of heat from a eservoir at `627^@C` and exhausts it to a sink at `27^@C`.What is its efficiency ?How much work does it perform?Express it in
kilowatt-hour

Carnot engine takes in a thousand kilocalories of heat from a eservoir at 627^@C and exhausts it to a sink at 27^@C .What is its efficiency ?How much work does it perform?Express it in electron-volt.

Carnot engine takes in a 3thousand kilocalories of heat from a eservoir at 627^@C and exhausts it to a sink at 27^@C How much work does it perform?

A Carnot heat engine working between 27^@ C and 127@ C takes up 800 J of heat from the reservoir in one cycle.The work done by engine is :

What is heat engine,write its essential parts?Write its working and find an expression for its efficiency .

A Carnot engine having sink at 27^@C has an efficiency of 40%.It is desired to increase the efficiency of 10%.By how many degrees the temperature of the source has to be increased?

A steam engine delivers 5.4 xx 10^8J of work per minute and services 3.6 xx 10^9J of heat per minute from its boiler. What is the efficiency of the engine? flow much heat is wasted per minute?

In a refrigerator, one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1kW power, and heat is transferred from -3^@ C to 27^@C , find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect engine.

What are the main essentials of Carnot's reversible heat engine? Explain its working and efficiency of the engine.