) (10%) A spherical particle B is surrounded by a gas mixture. The component A diffuses through the gas mixture and reacts with B on the surface of particle B according to the following reaction: A+B C + D Write the flux equation for C in the gas mixture surrounding B, if 0.8 moles of C produced per mole of A consumed. The diffusivity of C in the gas mixture is DCM. Assume the other gases (other than A and C) in the mixture are non-diffusing.