An electron is confined to a region of space of length L = 0.2 nm.Its minimum kinetic energy,assuming that p = $\Delta$p,is approximately A)1.5 $\times$ 10⁵ J B)5.7 $\times$ 10^-20 J C)3.8 $\times$ 10^-20 J D)3.8 $\times$ 10^-23 J E)7.4 $\times$ 10^-24 J

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Quizplus · Accepted Answer

The minimum kinetic energy of an electron confined to a region can be estimated using the uncertainty principle and the relation for kinetic energy. The correct calculation gives approximately 3.8 × 10^-20 J.

An Electron Is Confined to a Region of Space of Length