Physics · Mass Transfer
Which statement correctly describes steady-state ordinary molecular diffusion?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The rate of diffusion fluctuates due to pressure variations within the system.
- 2The rate of diffusion continuously increases with increasing concentration over time.
- 3The rate of diffusion depends only on molecular weight and not on concentration gradient.
- 4The rate of diffusion remains constant when concentration profiles do not change with time.✓
Correct answer
The rate of diffusion remains constant when concentration profiles do not change with time.
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