Uncertainty Principle Using ΔPΔx ≥ H/2: a Molecule of Roughly

Uncertainty principle using ΔpΔx ≥ h/2: A molecule of roughly spherical shape has a mass of 6.10 × 10^-25 kg and a diameter of 0.70 nm. The uncertainty in the measured position of the molecule is equal to the molecular diameter. What is the minimum uncertainty in the speed of this molecule? (h = 6.626 × 10^-34 J ∙ s)

A) 0.78 m/s
B) 7.8 m/s
C) 78 m/s
D) 0.078 m/s
E) 0.0078 m/s

Correct Answer:

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