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Great question. I don't know if MPP has sutherland's law, but if it does....it should be fairly simple to implement.
I guess with that thought, the Sutherlands law would be the identical implementation, but it would need additional errors if someone tried to used not AR, N2, or Air5/7.

Yes, Sutherland is used for viscosity and thermal conductivity. Blottner part of WBE is still used for diffusion coefficients.