Physical Chemistry 2 Quiz
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Consider a particle in a one-dimensional box of length LL. The momentum operator p^\hat{p} is applied to the normalized wavefunction ψn(x)=2Lsin⁡(nπxL)\psi_n(x) = \sqrt{\frac{2}{L}}\sin\left(\frac{n\pi x}{L}\right). What is the expectation value ⟨ψn∣p^∣ψn⟩\langle\psi_n|\hat{p}|\psi_n\rangle?
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