Is it possible hf=kT? Conditions Explained

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In summary, the conversation discusses the equation hf=kT and under what conditions it will be the same. The equation involves the Plack constant, frequency, Boltzmann constant, and temperature. It is used frequently in relation to thermal radiation and can involve transitions between classical and quantum regimes.
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phyky
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is it possible hf=kT? Under what condtion, it will be the same? where h is Plack constant, f is frequency and k is Boltzmann constant, T is temperature
 
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For any frequency f, there is a T which satisfies the equation.
 
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...edit:wait jtbell is this ever computed? I have never seen such an equality
 
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HomogenousCow said:
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edit:wait jtbell is this ever computed? I have never seen such an equality

It is used all the time. Any relation which involves thermal radation to/from a body held at a temperature T will involve thesee terms.
At hf=kBT there are often "transitions" of some sort. In some cases you have a transition from the classical (thermal) to quantum regime when hf=kBT
 

FAQ: Is it possible hf=kT? Conditions Explained

Is hf=kT a valid equation in science?

Yes, hf=kT is a valid equation in science. It is known as the Planck-Einstein relation and describes the relationship between the energy of a photon (hf) and the temperature of a system (kT).

What does hf=kT represent?

hf=kT represents the relationship between the energy of a photon (hf) and the temperature of a system (kT). It is a fundamental equation in the field of quantum mechanics.

What are the conditions for hf=kT to hold true?

In order for hf=kT to hold true, the system must be in thermal equilibrium, meaning that the temperature is constant throughout and there is no net energy transfer. Additionally, the system must consist of a large number of particles and the particles must be in thermal equilibrium with each other.

How does hf=kT relate to the Planck constant and Boltzmann constant?

The Planck constant (h) and the Boltzmann constant (k) are both involved in hf=kT. The Planck constant represents the energy of a single photon, while the Boltzmann constant relates the energy of particles to temperature. Together, they form the relationship between energy and temperature in the form of hf=kT.

What are the practical applications of hf=kT?

hf=kT has many practical applications, including understanding the behavior of electromagnetic radiation and the properties of materials at different temperatures. It is also used in fields such as thermodynamics, statistical mechanics, and quantum physics.

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