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

In summary, the conversation discusses the concept of entropy and how it relates to the second postulate in thermodynamics. The question is whether or not a given entropy function as a function of energy U follows the second postulate, and the group discusses different entropy functions and their implications. It is stated that the Sackur-Tetrode Equation for a monatomic ideal gas is a good resource for understanding this concept.
  • #1
ginda770
9
0
if given enropy S as a function of energy U how do i tell that is obeys the second postulate?
 
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  • #2
is there no one who can help?
 
  • #3
i had the same question lol
 
  • #4
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
 
  • #5
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
 
  • #6
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
 

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

1. What is thermodynamics?

Thermodynamics is a branch of physics that deals with the study of energy and its transformation. It focuses on understanding how energy is transferred between different forms and how it affects the behavior of matter.

2. What are the laws of thermodynamics?

There are four laws of thermodynamics, but the first and second laws are the most commonly referenced. The first law states that energy cannot be created or destroyed, only transferred or converted. The second law states that the total entropy of a closed system will always increase over time.

3. What is the difference between heat and temperature in thermodynamics?

Heat refers to the transfer of energy between two objects due to a temperature difference, while temperature is a measure of the average kinetic energy of the particles in a system. In thermodynamics, heat is a form of energy, while temperature is a measure of that energy.

4. How is thermodynamics applied in everyday life?

Thermodynamics has many practical applications in everyday life, such as in refrigerators, air conditioners, and engines. It also helps us understand the behavior of gases, liquids, and solids, and plays a role in fields like chemistry, biology, and environmental science.

5. What is the significance of thermodynamics in the study of the universe?

Thermodynamics is crucial in understanding the behavior of the universe, as it explains the transfer and transformation of energy between different forms. It also helps us understand the concept of entropy and the eventual heat death of the universe. Without thermodynamics, we would not be able to comprehend the fundamental principles governing our universe.

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