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Even Carnot engine cannot give 100% effi...

Even Carnot engine cannot give `100%` efficiency because we cannot

A

prevent radiation

B

find ideal sources

C

reach absolute zero temperature

D

eliminate friction.

Text Solution

Verified by Experts

The correct Answer is:
C
(c) `eta=1-(T_2)/(T_1)`
For `eta=1 or 100%, T_2=0K`
The temperature of 0K (absolute zero) can not be
obtained.
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