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- Subject
- Mass Transferchemical-engineering › mass-transfer
- Published
- 18 Feb 2019
- Last updated
- 28 May 2026
Explanation
The Lewis number is a dimensionless parameter that relates thermal diffusivity to mass diffusivity. It plays a crucial role in humidification processes where heat and mass transfer occur simultaneously, making option D the correct choice.
More Mass Transfer MCQs
Practice related questions from the same subject.
- 1.Identify the incorrect statement from the following:
- 2.What is the temperature called at which a gas-vapor mixture reaches saturation upon cooling at constant total pressure without contacting any liquid?
- 3.What is the consequence of a large pressure drop in absorbers?
- 4.What is the typical order of magnitude for binary diffusivity in gases under atmospheric pressure?
- 5.How does the formation of 'case hardening' in a high moisture solid cake impact the drying rate?
- 6.Which type of dryer is commonly used for drying refractory bricks?
- 7.Which type of rings is most frequently utilized as packing material in industrial processes?
- 8.What factor primarily influences the capacity of a rotary dryer?
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