For a certain liquid at the room temperature, the velocity of an ink molecule is about 1.05 x 10" cm/s and the mean free path is of the order of 0.75 x 10-8 cm. Calculate the diffusion coefficient of the ink molecule. Please note , 10^n is same as 10 0.5 x 10^-5 cm^2/s 5x 10*-5 m^2/s 5x 10^4 cm^ 2/s 4x 10^-4 cm^2/5 5 x 10*-5 cm^ 2/s 3.9x 10^-5 cm^ 2/s