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← ScienceWhich mechanism causes increased oxidation rate in tungsten filaments?
A)Quantum electron tunneling through surface oxides✓
B)Increased thermal energy creating free radicals
C)Electromagnetic radiation excites oxygen molecules
D)Rapid surface area increase amplifies collisions
💡 Explanation
Quantum electron tunneling through an oxide layer causes increased passage events; because electrons tunnel, the oxide layer doesn't act as a perfect barrier. Therefore, oxidation happens faster rather than being limited by classic thermionic emission.
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