the diffusion coefficients for carbon in nickel are given at two temperatures: t (˚c) d (m2/s) 600 5.5 × 10-14 700 3.9 × 10-13 (a) determine the value of d0. enter your answer for part (a) in accordance to the question statement m2/s (use scientific notation.) (b) determine the value of qd. enter your answer for part (b) in accordance to the question statement kj/mol (c) what is the magnitude of d? at 830˚c. enter your answer for part (c) in accordance to the question statement m2/s (use scientific notation.)