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← ScienceWhich phenomenon accelerates instability of thin-film coating process?
A)Marangoni instability exacerbates coating defects✓
B)Rayleigh scattering diffuses incident photons
C)Capillary action equalizes liquid heights
D)Gravitational settling concentrates dense materials
💡 Explanation
Marangoni instability accelerates instability because surface tension gradients driven by evaporative cooling induce fluid flow, therefore defects propagate rather than equalize because viscous forces counteract this instability under different conditions.
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