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Mass transfer is occurring from a sphere of naphthalene (Component A) having a radius of 1 cm. The sphere is in a large volume of still air (Component B) at 52.6 °C and 1 atm pressure. The vapor pressure (PA) of naphthalene at 52.6 °C is 10 mmHg. The diffusivity of naphthalene in air at this temperature is 7.02x10-6 m²/s. By using shell-balance method, find the concentration profile of naphthalene and calculate the rate of evaporation of naphthalene from the surface in kmol/m².s. (Ideal gas constant is R = 82.06 cm³atm/mol.K, x₁ = P/P, C=P/RT)

Mass transfer is occurring from a sphere of naphthalene (Component A) having a radius of 1 cm. The sphere is in a large volume of still air (Component B) at 52.6 °C and 1 atm pressure. The vapor pressure (PA) of naphthalene at 52.6 °C is 10 mmHg. The diffusivity of naphthalene in air at this temperature is 7.02x10-6 m²/s. By using shell-balance method, find the concentration profile of naphthalene and calculate the rate of evaporation of naphthalene from the surface in kmol/m².s. (Ideal gas constant is R = 82.06 cm³atm/mol.K, x₁ = P/P, C=P/RT)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Mass transfer is occurring from a sphere of naphthalene (Component A) having a radius of 1 cm. The sphere is in a large volume of still air (Component B) at 52.6 °C and 1 atm pressure. The vapor pressure (PA) of naphthalene at 52.6 °C is 10 mmHg. The diffusivity of naphthalene in air at this temperature is 7.02x10-6 m²/s. By using shell-balance method, find the concentration profile of naphthalene and calculate the rate of evaporation of naphthalene from the surface in kmol/m².s. (Ideal gas constant is R = 82.06 cm³atm/mol.K, x₁ = P/P, C=P/RT)
Transcribed Image Text:Mass transfer is occurring from a sphere of naphthalene (Component A) having a radius of 1 cm. The sphere is in a large volume of still air (Component B) at 52.6 °C and 1 atm pressure. The vapor pressure (PA) of naphthalene at 52.6 °C is 10 mmHg. The diffusivity of naphthalene in air at this temperature is 7.02x10-6 m²/s. By using shell-balance method, find the concentration profile of naphthalene and calculate the rate of evaporation of naphthalene from the surface in kmol/m².s. (Ideal gas constant is R = 82.06 cm³atm/mol.K, x₁ = P/P, C=P/RT)
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