Approximately How Many States in the Range from 5

question 14

Multiple Choice

Approximately how many states in the range from 5.0 eV to 5.2 eV are there in a copper bar of volume 5.3 cm3? (h = 6.626 × 10^-34 J ∙ s, = 1.055 × 10^-34 J ∙ s, ^mel = 9.11 × 10^-31 kg, 1 eV = 1.60 × 10^-19 J)

• A) 5.1 × 10²²
• B) 3.2 × 10²²
• C) 1.6 × 10²²
• D) 8.2 × 10²¹
• E) 3.2 × 10²¹

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