wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A carnot cycle is having maximum efficiency because

A
it comprises of two adiabatic process which requires no heat in its execution.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
it comprises of two isothermal process.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
its every process is reversible
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
none of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B its every process is reversible
Carnot cycle consists of 4 process. All of them are ideal and practically not possible.

1.Isothermal heat addition- Nothing can be more efficient than this heating since no finite temperature difference exists between heat source and receiver. Hence it is a reversible process and most efficient,

2.Isentropic(reversible adiabatic) expansion- Most efficient expansion, as no heat loss is taking place, full energy is utilised only for expansion and thereby doing work.

3.Isothermal heat rejection- Most efficient heat rejection to a heat sink at same temperature.

4.Isentropic compression- Compressed(without friction) with no heat lost to surrounding. Power input is used only for increasing the pressure and temperature.

In this cycle every process is reversible and hence it is most efficent.
When the cycle is completed input energy and power is used only for the purpose it was intended. Output was completely used for intended purpose

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Thermodynamic Devices
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon