What is the Relationship Between Entropy and Temperature?

In summary, the conversation revolves around the second law of thermodynamics and the concept of entropy (S). The main goal is to prove that λ = 1/T, where T represents temperature. The conversation also touches upon the definitions of S, Q, and T and the relationship between dS and dQ. Overall, the individual is seeking help and advice to successfully demonstrate the desired outcome.
  • #1
HmJeremy
1
0
Homework Statement
Thermodynamics - entropy - second law
Relevant Equations
dS = λ*dQ ----> dS = dQ/T , where λ = 1/T
Help!
Hi, I need
in the secodn law of thermodynamic, we have the ENTROPY "S".

Well, I need help for this:
We have dS ≈ dQ

Then we have dS = λ *dQ
where we have λ = λ (T, ... )

I have to demostrate that :
λ = 1/T , where T = temperature.

Thanks for the advices and help!
 
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  • #2
To be able to prove that ##dS = \frac{dQ}{T}##, you need to start with the definitions of ##S, Q## and ##T##. What definitions are you supposed to start with?
 
  • #3
HmJeremy said:
We have dS ≈ dQ
We do? S and Q have different dimensions!Then we have dS = λ *dQ
where we have λ = λ (T, ... )

I have to demostrate that :
λ = 1/T , where T = temperature.

Thanks for the advices and help!
[/QUOTE]
 

Related to What is the Relationship Between Entropy and Temperature?

What is entropy?

Entropy is a measure of the disorder or randomness of a system. It is often described as the amount of energy that is unavailable for work in a given system.

What is temperature?

Temperature is a measure of the average kinetic energy of the particles in a system. It is often described as the measure of how hot or cold a system is.

What is the relationship between entropy and temperature?

The relationship between entropy and temperature is described by the Second Law of Thermodynamics, which states that the entropy of a closed system will tend to increase over time. This means that as the temperature of a system increases, its entropy will also increase.

How does temperature affect entropy?

As the temperature of a system increases, the particles within the system will have more energy and move more rapidly. This increased movement and energy results in a greater amount of disorder or randomness, thus increasing the system's entropy.

Can entropy ever decrease with increasing temperature?

In general, the entropy of a system will increase with increasing temperature. However, there are certain cases where the entropy may decrease with increasing temperature, such as in phase transitions or in systems with negative temperature. These are exceptions to the general relationship between entropy and temperature.

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