# Value Of Boltzmann Constant

In thermodynamics, Boltzmann constant is the physical constant relating average kinetic energy of the gas particles and temperature of the gas represented by k or kB. The value of Boltzmann constant is measured using J/K or m2Kgs-2K-1. Boltzmann constant is one of the seven defining constants that have been given exact definitions. It is mostly observed in Boltzmann’s entropy formula and Planck’s law of Black body radiation.

## Value Of k

The values of Boltzmann constant is obtained by dividing gas constant R by Avogadro’s number NA. The value of k or kB is

Boltzmann constant k or kB = 1.3806452 × 10-23 J/K.

### Value Of Boltzmann Constant In eV

The value of Boltzmann constant in eV is 8.6173303 × 10-5 eV/K

The value of Boltzmann constant can be expressed in various units. The table given below comprises of the value of k along with different units.

 Value Of k Units 1.3806452 × 10-23 m2.Kg.s-2.K-1 8.6173303 × 10-5 eV.K-1 1.38064852 × 10-16 erg.K-1

### Boltzmann Constant

The Boltzmann constant is introduced by Max Plank and named after Ludwig Boltzmann. It is a physical constant obtained by taking the ratio of two constants, namely gas constant and Avogadro number.

### Boltzmann constant Formula

The behaviour of gases made to understand a step closer by Planck and Boltzmann by introducing constants. Boltzmann constant is mathematically expressed as-

$k=\frac{R}{N_{A}}$

Where,

• K is Boltzmann’s constant.