Question: The diffusion coefficient of some spherical nanoparticles ( radius = 6 n m ) in a liquid solution is measured to be 3 . 5

The diffusion coefficient of some spherical nanoparticles (radius =6nm) in a liquid solution is measured to be 3.5*10-9m2s at 22C with a nanoparticle concentration of 1.00*10-1M(trial 1). The experiment is repeated at 50C with a nanoparticle concentration of 1.00*10-1M(trial 2). The solvent viscosities are measured to be 1.2 Pa.s (trial 1) and 3.4 Pa.s (trial 2) using a rheometer. What value would you expect the diffusion coefficient to have in trial 2?
A. less than 1.0*10-9m2s
D. between 3.0*10-9m2s and 4.0*10-9m2s
B. between 1.0*10-9m2s and 2.0*10-9m2s
E. between 4.0*10-9m2s and 5.0*10-9m2s
C. between 2.0*10-9m2s and 3.0*10-9m2s
D=**T6****rA**B
Where,
B is the solvent viscosity (Pa*s)
is the Boltzmann constant (J*K-1)
rA is the solute particle radius (m)
T is absolute temperature (K)
 The diffusion coefficient of some spherical nanoparticles (radius =6nm) in a

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