1- The mass flux for dilute naphthalene from the surface 2- Then find the partial pressure of naphthalene at a distance 31 mm from the surface of the naphthalene sphere. Assume steady – state diffusionHi expert please answer both this is my last question.Thank you. A sphere of naphthalene having a radius of 1.5 mm is suspended in a large volume ofstill air at 320 K and 101.325 kPa. The surface temperature of the naphthalene can beassumed to be at 320 K and its vapor pressure at this temperature is 0.342 mmHg. Thediffusivity (DAB) of naphthalene in air is 7.32x10 m/s, calculate:1- The mass flux for dilute naphthalene from the surface2- Then find the partial pressure of naphthalene at a distance 31 mm from the surface ofthe naphthalene sphere. Assume steady - state diffusion.

Radius of the naphthalene sphere r=1.5 mm =(1.5×10-3) m=0.0015 m Temperature T = 320 K Pressure P =…

1- The mass flux for dilute naphthalene from the surface 2- Then find the partial pressure of naphthalene at a distance 31 mm from the surface of the naphthalene sphere. Assume steady – state diffusion Hi expert please answer both this is my last question. Thank you

1- The mass flux for dilute naphthalene from the surface 2- Then find the partial pressure of naphthalene at a distance 31 mm from the surface of the naphthalene sphere. Assume steady – state diffusion Hi expert please answer both this is my last question. Thank you

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter6: Equilibria In Single-component Systems

Section: Chapter Questions

Problem 6.46E

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Question

A sphere of naphthalene having a radius of 1.5 mm is suspended in a large volume of
still air at 320 K and 101.325 kPa. The surface temperature of the naphthalene can be
assumed to be at 320 K and its vapor pressure at this temperature is 0.342 mmHg. The
diffusivity (DAB) of naphthalene in air is 7.32x10 m/s, calculate:
1- The mass flux for dilute naphthalene from the surface
2- Then find the partial pressure of naphthalene at a distance 31 mm from the surface of
the naphthalene sphere. Assume steady - state diffusion.

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