# Formula Photon Energy Per Mole Wavelength    Avogardo constant    Speed of light

## Photon energy per mole

Unit
Photon energy per mole indicates the energy of $$6 \cdot 10^{23}$$ photons. This amount of photons makes up one mole.

## Wavelength

Unit
Wavelength of the used light. The smaller the wavelength, the greater the energy of one mole of photons.

## Avogardo constant

Unit
The Avogardo constant is a physical constant with the value $$N_{\text A} ~=~ 6 \cdot 10^{23} \, \frac{1}{\mathrm{mol}}$$ and represents the number of photons that are in one mole.

## Planck's Constant

Unit
Planck's constant is a physical constant from quantum mechanics and has the value:$$h ~=~ 6.626 \, 070 \, 15 \,\cdot\, 10^{-34} \, \mathrm{Js}$$

## Speed of light

Unit
LSpeed of light (in vacuum) is a physical constant and has the value:$$c ~=~ 3 \cdot 10^8 \, \frac{\mathrm m}{\mathrm s}$$