molecular diffusion
[mə-ˈle-kyə-lər dih-ˈfyü-zhən]
nounfemininepl: diffusões moleculares
difusão molecular
1. the spontaneous movement of molecules from an area of higher concentration to an area of lower concentration, driven by random thermal motion
Molecular diffusion occurs when gas molecules spread throughout a room from a single source.
A difusão molecular ocorre quando moléculas de gás se espalham por toda uma sala a partir de uma única fonte.
2. the process by which individual molecules move through a medium due to thermal motion rather than bulk flow
In chemistry, molecular diffusion is essential for understanding reaction rates in solutions.
Em química, a difusão molecular é essencial para compreender as velocidades de reação em soluções.
3. transport of mass at the molecular level driven by concentration gradients
Molecular diffusion in liquids is slower than in gases due to greater molecular interactions.
A difusão molecular em líquidos é mais lenta que em gases devido às maiores interações moleculares.
This is specialized scientific terminology used universally in academic and professional settings in both Brazil and Portugal. There is no colloquial variation, and the term is consistent across scientific communities in all Portuguese-speaking regions. It is commonly taught in secondary and higher education chemistry and physics courses.
Related Idioms & Phrases
the diffusion of knowledge
concentration gradient drives diffusion
equilibrium through diffusion
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