List of top Physics Questions on carnot cycle asked in BITSAT

A Carnot engine operates between temperatures of $ 600 \, \text{K} $ and $ 300 \, \text{K} $. If it absorbs $ 900 \, \text{J} $ of heat from the source, how much work does it perform?

A cyclic process ABCD is shown in the figure P-V diagram. Which of the following curves represent the same process? 


A cyclic process ABCD is shown in the P–V diagram. Which of the following curves represent the same process? 



A Carnot's heat engine works between the temperatures 427°C and 27°C. What amount of heat should it consume per second to deliver mechanical work at the rate of 1.0 kW?
An ideal refrigerator has a freezer at a temperature of 130C. The coefficient of performance of the engine is 5. The temperature of the air (to which heat is rejected) is