Nonequilibrium processes in a moderately dense polyatomic gas in an external magnetic field

Dissipative and relaxation processes in a moderately dense polyatomic gas in an external magnetic field are studied using quantum kinetic theory methods. The momentum and energy fluxes and transport coefficients are obtained in the dissipative Navier-Stokes approximation, taking into account the first virial correction. The tensor coefficient of shear viscosity in a gas of diamagnetic molecules is obtained as a function of binary and ternary effective cross sections and the value of the magnetic field. The Bloch equation for magnetization in a spatially homogeneous gas of linear diamagnetic molecules is derived. Relaxation times and the shift of Larmor frequency due to intermolecular collisions are obtained. (Author)