List of top Physics Questions on carnot cycle asked in KEAM

Efficiency of a Carnot engine

If the heat supplied to an ideal gas is used up entirely to do work on the surrounding, then the process is called

A Carnot engine is operating between a hot body and cold body maintained at temperatures \( T_1 \) and \( T_2 \) respectively. Consider the following three cases:
• Case-I: The temperature of the hot body is changed to \( T_1 + \Delta T \) and cold body is at \( T_2 \).
• Case-II: The temperature of the hot body is at \( T_1 \) and cold body is changed to \( T_2 + \Delta T \).
• Case-III: The temperature of the hot body is at \( T_1 \) and cold body is changed to \( T_2 - \Delta T \). The efficiency of the Carnot cycle is highest for:

The Carnot cycle of a reversible heat engine consists of

A Carnot engine operating between temperatures \(T_1\) and \(T_2\) has efficiency 0.2. When \(T_2\) is reduced by 50 K, its efficiency increases to 0.4. Then \(T_1\) and \(T_2\) are respectively

A Carnot engine operating between temperatures \(T_1\) and \(T_2\) has efficiency 0.2. When \(T_2\) is reduced by 50 K, its efficiency increases to 0.4. Then \(T_1\) and \(T_2\) are respectively

A Carnot engine operating between temperatures \(T_1\) and \(T_2\) has efficiency 0.2. When \(T_2\) is reduced by 50 K, its efficiency increases to 0.4. Then \(T_1\) and \(T_2\) are respectively