Mass Transfer - Study Mode
[#376] Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the
Correct Answer
(C) Specific heat
[#377] When a multistage tray tower uses a minimum reflux ratio, it implies
Correct Answer
(A) Infinite trays and maximum reboiler heat load
[#378] In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the
Correct Answer
(D) None of these
[#379] Which of the following operations does not involve leaching?
Correct Answer
(D) Removing nicotine from its water solution by kerosene
[#380] Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as
Correct Answer
(B) K ∝ $$sqrt { ext{D}} $$
Explanation
Solution: In the penetration theory of mass transfer, the relationship between the average mass transfer coefficient (K) and diffusivity (D) is given by certain power functions. According to the penetration theory, the correct relationship is expressed as K being proportional to the square root of D, represented as K ∝ √D u200b. This relationship signifies that the mass transfer coefficient is directly influenced by the square root of the diffusivity. Hence, Option B: K ∝ √D is the correct representation of the relationship between the average mass transfer coefficient and diffusivity according to the penetration theory in mass transfer studies.