Transport properties of monatomic carbon

Transport properties of monatomic gases depend on the two-body atom–atom interaction potential. When two ground state carbon atoms interact, they can follow any of 18 potential energy curves corresponding to the C2 molecule. Accurate representations of these curves have been obtained for each of the 18 states and transport collision integrals have been calculated for each state. Those states with an attractive minimum in the potential have been represented by the Hulburt–Hirschfelder potential and the purely repulsive states have been represented by the exponential repulsive potential. The collision integrals are compared with results obtained in previous studies. The effects of the details of the potential on the resulting transport collision integrals are discussed.