  The temperature dependence of rates of electron impact ionization and two
electrons recombination are calculated using Wannier cross section of electron
impact ionization of neutral hydrogen atom. Entropy production and power
dissipation are derived for the case when the ionization degree deviates from
its equilibrium value. This is the special case of the obtained general formula
for entropy production accompanying chemical reactions. Damping rate of the
sound waves is calculated and the conditions when ionization processes dominate
are considered. A quasi-classical approximation for the heating mechanism of
solar chromosphere is proposed. Several analogous phenomena for damping rates
in liquids and crystals are shortly discussed, for example, deaf sound of a
glass of beer or English salt solution. An explicit expression for the second
or bulk (or volume) viscosity of hydrogen plasma is calculated from firsts
principles. For the first time some second viscosity is calculated from first
principles.
