  The Lorentz covariant statistical physics and thermodynamics is formulated
within the preferred frame approach. The transformation laws for geometrical
and mechanical quantities such as volume and pressure as well as the
Lorentz-invariant measure on the phase space are found using Lorentz
transformation in absolute synchronization. Next, the probability density and
partition function are investigated using the preferred frame approach and the
transformation laws for internal energy, entropy, temperature as well as other
thermodynamical potentials are established. The Lorentz covariance of basic
thermodynamical relations, including Clapeyron's equation and Maxwell's
relations is shown. Finally, the relation of presented approach to the previous
approaches to relativistic thermodynamics is briefly discussed.
