Clausius Statement

Clausius Statement 
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Clausius Statement -“It is impossible for a self acting machine working in a cyclic process unaided by any external agency, to convey heat from a body at a lower temperature to a body at a higher temperature”. In other words, heat of, itself, cannot flow from a colder to a hotter body. 

Example : Heat pump 

Kelvin-Planck Statement -“It is impossible to construct an engine, which while operating in a cycle produces no other effect except to extract heat from a single reservoir and do equivalent amount of work”. 

Example : Heat Engine
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Last Answer : (A) d ln p/dt = Hvap/RT2

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