Is S as a function of U consistent with the second law of thermodynamics?

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if given enropy S as a function of energy U how do i tell that is obeys the second postulate?
 
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is there no one who can help?
 
i had the same question lol
 
ginda770 said:
if given enropy S as a function of energy U how do i tell that is obeys the second postulate?
I am not sure what you mean by the second postulate. Do you mean the second law of Thermodynamics? (it is not a postulate).

AM
 
in our class there were 4 postulates. the second was that entropy is maximized. we were given a few entropy functions and had to decide which ones violated the second postulate
 
S given as a function of U doesn not violate the second law of thermodynamics..because S IS a function of U...
look up the Sackure-Tetrode Equation for a monatomic ideal gas
 
To solve this, I first used the units to work out that a= m* a/m, i.e. t=z/λ. This would allow you to determine the time duration within an interval section by section and then add this to the previous ones to obtain the age of the respective layer. However, this would require a constant thickness per year for each interval. However, since this is most likely not the case, my next consideration was that the age must be the integral of a 1/λ(z) function, which I cannot model.
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