Viscosity and thermal conductivity for symmetric top molecules under the simultaneous influence of an electric and a magnetic field

Viscosity and thermal conductivity of a gas consisting of polyatomic molecules in the presence of both an electric and a magnetic field are treated. The symmetry properties of the transport coefficients are given. Kinetic theory expressions for the viscosity and thermal conductivity coefficients are derived using a Chapman-Enskog method. The results are expressed in terms of precession angles and effective cross sections for the case of a single angular momentum dependent polarization, viz.,JJ for the case of viscosity and WJJW for the case of thermal conductivity.