Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Can someone help me with this, Even Carnot engine cannot give 100% efficiency because we cannot

Even Carnot engine cannot give 100% efficiency because we cannot

  • Option 1)

    prevent radiation

  • Option 2)

    find ideal sources

  • Option 3)

    reach absolute zero temperature

  • Option 4)

    eliminate friction.

 

Answers (1)

best_answer

As we learnt in 

Efficiency of a carnot cycle -

\eta =\frac{W}{Q_{1}-Q_{2}}=1-\frac{T_{2}}{T_{1}}

T_{1}\, and\, T_{2}  are in kelvin
 

- wherein

T_{1}= Source temperature

T_{2}= Sink Temperature

\left ( T_{1} > T_{2}\right )

 

  For Carnot Cycle

Efficiency \eta =1-\frac{T2}{T2}

Efficiency will be 100% only if T2  = O K

But this not possible.


Option 1)

prevent radiation

This option is incorrect.

Option 2)

find ideal sources

This option is incorrect.

Option 3)

reach absolute zero temperature

This option is correct.

Option 4)

eliminate friction.

This option is incorrect.

Posted by

Aadil

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

How to crack JEE Mains 2025 in 1 month? Follow study plan, revise high-score topics, experts advice
anam-khan

IIT JEE aspirant from Bihar found hanging in Kota hostel; 17th suicide this year
anam-khan

JEE Main 2025 just a month away; section-wise preparation tips, important topics, strategies

Latest Question