Boltzmann constant

(redirected from Boltzman's constant)
Also found in: Medical, Encyclopedia.
Related to Boltzman's constant: Joules, Wolfram Alpha

Boltzmann constant

n
(General Physics) physics the ratio of the gas constant to the Avogadro constant, equal to 1.380 650 × 10–23 joule per kelvin. Symbol: k
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Where, H is Planck's constant (6.63 x10-34 Js), Kb is Boltzman's constant (R/N) (1.38 x 10-23 JK-1), R is Gas constant (8.314 JK-1mol-1), N is Avogadro's No.
In this expression, photo-current, saturation current, load resistance, series equivalent circuit resistance, parallel equivalent circuit resistance, terminal voltage, load current, diode ideality factor, Boltzman's constant and temperature of PV panel are denoted by [I.sub.PH], [I.sub.S], [R.sub.L], [R.sub.S], [R.sub.SH], V, I, A, k and T respectively.
Blackbody Radiation and the Loss of iniversality: Implications for Planck's Formulation and Boltzman's Constant. Progr.
I = [I.sub.0]{exp(eV/kBT) - 1}, a rectifier equation, where, [I.sub.0] = total saturation current, e = charge on electron, V = applied voltage, kB = Boltzman's constant, and T =temperature.
[sigma]--Stefan Boltzman's constant, W/[m.sup.2][k.sup.4]
where [r.sub.o] depends on molecular parameters and crystal geometry and is temperature independent, [DELTA][F.sup.[+ or -]] is the energy barrier for mass transport trough the crystal-melt interface, [DELTA]H is the enthalpy of DMDBS fusion, [T.sub.x] is the thermodynamic transition temperature and k is the Boltzman's constant. [[sigma].sub.s] and [[sigma].sub.e] are the surface energies of the DMDBS fibrillar nucleus, the former relates to the side surface and the latter to the ends [11].