At what temperature does kT equal 1 eV?
A1000 K
B100 K
C300 K
D11600 K (= 1.6e-19 / 1.38e-23 ≈ 11600)
Answer & Solution
Correct answer: D. 11600 K (= 1.6e-19 / 1.38e-23 ≈ 11600)
kT = 1 eV → T = 1.6 × 10⁻¹⁹ / 1.38 × 10⁻²³ ≈ 11600 K. At room T (300 K), kT ≈ 1/40 eV = 0.025 eV.
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