Define 2nd law of thermodynamics in two ways

AI Thread Summary
The second law of thermodynamics can be defined in two ways: the Clausius statement, which asserts that heat cannot spontaneously flow from a colder body to a hotter body, and the Kelvin-Planck statement, which states that it is impossible to convert all heat from a heat source into work without some energy being lost. These definitions highlight the law's implications for energy transfer and efficiency in thermodynamic processes. Understanding these two perspectives demonstrates their equivalence in describing the limitations of energy transformations. The discussion emphasizes the need for clarity in defining thermodynamic principles.
ZedCar
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Homework Statement



Define the second law of thermodynamics in two different ways and show these two ways are equivalent.

Homework Equations





The Attempt at a Solution



Could anyone give me any pointers as to what this might mean? I know what the 2nd law of thermodynamics states, but how would I define it in two different ways?

Thank you.
 
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ZedCar said:
Could anyone give me any pointers as to what this might mean? I know what the 2nd law of thermodynamics states, but how would I define it in two different ways?
It is a reference to the different statements of the second law by Clausius and by Lord Kelvin.

AM
 

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