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MMLU / The rotational correlation time of a spherical object of radius r immersed in a…

Problem

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question

The rotational correlation time of a spherical object of radius r immersed in a liquid with viscosity η is given by the Stokes equation: τc = 4πηr3/3kBT. A small molecule with relative molecular mass Mr = 100 in water at 298 K has τc = 50 ps. Assuming that Mr is proportional to the molecular volume, estimate τc for a small protein with Mr = 8400.

choices

  1. 420 ns
  2. 42 ns
  3. 4.2 ns
  4. 420 ps

subject

college_chemistry

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