Question

define the working principle of Carnot engine in simple way​

Answer 1

Answer:

Carnot's engine works on the principle of simple heat engine

a mole in Carnot's engine undergoes

1)Isothermal expansion

2)Adiabatic expansion

3)Isothermal compression

4)Adiabatic compression

It is a reversible process

so work done in adiabatic processes are 0

has efficiency new =T2-T1/T2

Answer 2

We know the carnot engine has the following parts:

1. Source

2. Working substance

3. Insulating Stand

4. Sink

The cyclic process done in the carnot engine is explained below.

(1) Isothermal Expansion

Here the vessel containing working substance is placed over the source to absorb heat from it, so that the work for expansion is allowed to be done from $(P_1,\ V_1,\ T_1)$ to $(P_2,\ V_2,\ T_1).$

(2) Adiabatic Expansion

Here the vessel is replaced from source to the insulating stand so that the work for expansion is allowed to be done from $(P_2,\ V_2,\ T_1)$ to $(P_3,\ V_3,\ T_2).$

(3) Isothermal Compression

Here the vessel is replaced to the sink to release heat from it, so that the work for compression is allowed to be done from $(P_3,\ V_3,\ T_2)$ to $(P_4,\ V_4,\ T_2).$

(4) Adiabatic Compression

Here the vessel is replaced again to the insulating stand so that the work for compression is allowed to be done from $(P_4,\ V_4,\ T_2)$ back to $(P_1,\ V_1,\ T_1).$