This study is to investigate the effect of the chemical process by activation energy on heat transference and mass transference of a fluid by heat generation parameter (Hg) and radiation parameter (Rd). Attention has been given to the changes caused on the temperature by the flow in rotating frame by the heat generation parameter, Biot number, and radiation param-eter. The variation of velocity and concentration of fluid, which is chemically reacting, by the influence of the rotational parameter (β) has been incorporated. A numerical solution of the system through resulting equations has been undertaken. Effects of different flow parameters are presented by graphs and tables. Results show that activation energy increases when there is an increase in the concentration of the chemical species and that velocity decrease by the increase in porosity. With the rise of Prandtl number the temperature of the chemical sys-tem decreases. A numerical discussion on skin friction coefficients, Sherwood and Nusselt numbers has been done.