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CARNOT ENGINE

Working Substance

Sadi Carnot, a French engineer,explained Carnot Engine in 1824

In Carnot Engine, Gas is the Working Substance

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Carnot cycle

Question 1

Carnot cycle is a Pressure - Volume diagram

Different Heat Engines and Cycles

Carnot Cycle explains the working of Ideal Heat Engine

Diesel Engine Cycle
Steam Engine Cycle
Petrol Engine Cycle
Jet Engine Cycle

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Steps in Carnot Cycle

It is a reversible heat engine that operates between two temperatures T1 and T2

Identify the four sequences.

Process AB: expansion of the gas taking its state from (P1 , V1 , T1 ) to (P2 , V2 , T1 ).

Process BC: Adiabatic of the gas taking its state from (P2 , V2 , T1 ) to (P3 , V3 , T2 ).

Process CD: Isothermal of the gas taking its state from (P3 , V3 , T2 ) to (P4 , V4 , T2 ).

Process DA: compression of the gas taking its state from (P4 , V4 , T2 ) to (P1 , V1 , T1 ).

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Efficiency of Carnot cycle

Question

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Identify the wrong statement in connection with efficiency of Carnot Cycle

Answers

No engine can have efficiency more than that of the Carnot engine

The efficiency of the Carnot engine depends on the nature of the working substance

Efficiency depends on the temperatures of Hot and Cold Reservoirs

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