Separation of the isotopes of helium for scientific investigations is done by_____________________?
Correct answer: B. Thermal diffusion
- A. Reverse osmosis
- B. Thermal diffusion
- C. Leaching
- D. Solvent extraction
Explanation
Helium isotopes can be separated by thermal diffusion because the lighter and heavier isotopes diffuse differently under a temperature gradient. Reverse osmosis, leaching, and solvent extraction are not suitable for separating gaseous helium isotopes.
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