What is the potential energy of photon?

When the photon is traveling at the speed of light where the M and E vectors of photon are perpendicular, the photon possesses full kinetic (Ek) energy, and when a photon is brought to rest, the total energy of photon is transformed to the potential energy (Ep). This is also called the rest energy of mass.

What is the chemical potential of a photon?

zero chemical
Photons are assigned a temperature but zero chemical potential. In processes such as photovoltaic or photochemical absorption, electroluminescence and chemiluminescence, the number of photons is related to that of other energy quanta, eg.

Why is the chemical potential of a photon zero?

And the energy to create any particle, relativistically, is easily seen as the mass-energy. And a photon has no mass. So its mass-energy is zero. Thus the chemical potential to add a photon is also zero.

What is the value of a photon?

The energy of a single photon is: hν or = (h/2π)ω where h is Planck’s constant: 6.626 x 10-34 Joule-sec. One photon of visible light contains about 10-19 Joules (not much!)

How many joules is a photon?

It should not surprise us that the energy of a single photon is small. It is also useful to calculate the number of photons in a Joule of energy. This is just the inverse of the energy per photon, and gives 3.2×1018 photons per Joule.

Do photons have gravitational potential energy?

the photon has no mass so, in classical physics it can not have gravitational potential.

Do photons have temperature?

The photons themselves do not have temperature as such. However, photons do contribute to the temperature of objects since they carry energy. A very good example is the microwave background radiation which is known to contribute a temperature to the universe at about 3K.

Do photons have mass?

Since photons (particles of light) have no mass, they must obey E = pc and therefore get all of their energy from their momentum. Now there is an interesting additional effect contained in the general equation. If a particle has no mass (m = 0) and is at rest (p = 0), then the total energy is zero (E = 0).

Is a photon gas an ideal gas?

Thermodynamics of a black body photon gas In a classical ideal gas with massive particles, the energy of the particles is distributed according to a Maxwell–Boltzmann distribution. This distribution is established as the particles collide with each other, exchanging energy (and momentum) in the process.

Is photon a wave or particle?

Einstein believed light is a particle (photon) and the flow of photons is a wave. The main point of Einstein’s light quantum theory is that light’s energy is related to its oscillation frequency.

What is the chemical potential to add a photon?

And the energy to create any particle, relativistically, is easily seen as the mass-energy. And a photon has no mass. So its mass-energy is zero. Thus the chemical potential to add a photon is also zero. where β is the thermodynamic constant β ≡ 1 / k B T and E is the energy of each particle in a mode or E = h ν.

What is the potential energy of a photon when brought to rest?

When the photon is brought to rest, the full potential energy of photon is also the rest energy of mass. E = Pp= hf = mc2 … eq. WD.1.7

Is photon energy quantized or not?

Although photon energy is quantized, under certain condition, the quantized energy of photon can be sub-divided into the kinetic and the potential energy. In this chapter, the detail development and derivation of photon energy is presented. OBJECTIVES 1) To establish the kinetic and the potential energy of photon.

What is the mass property of photons?

The potential energy of photon is also the Mass Propertyof the photon. The transformation of photon to particle is discussed in detail in the Chapter ‘Pair Production’ under the main Topic of ‘Mass’.