The Kelvin-Planck and Clausius statements are:
AEquivalent
BDifferent
COpposite
DUnrelated
Answer & Solution
Correct answer: A. Equivalent
1. One denies a perfect engine, the other a perfect refrigerator.
2. Either can be derived from the other.
3. So the two statements are completely equivalent.
_Source: NCERT Class 11 Physics Part II, Chapter 12, Thermodynamics._
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