the vapor phase concentration in ppm(v)?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A plant that manufactures Heptachlor C10H5C1, needs to comply with established regulations regarding human
exposure limits through air exposure. These limits are given in ppm(v), but currently the plant outputs information
about release to the air is in units of g/s. A manager was tasked with calculating the output based on information
they had about the current ventilation system and the volume of the plant in a complete mix reactor assumption.
We will learn the details of this later in the class, but for now we just use the first result in the manager's calculation:
a vapor phase concentration of 1 µg/m³. Based on this result, what is the vapor phase concentration in ppm(v)?
Transcribed Image Text:A plant that manufactures Heptachlor C10H5C1, needs to comply with established regulations regarding human exposure limits through air exposure. These limits are given in ppm(v), but currently the plant outputs information about release to the air is in units of g/s. A manager was tasked with calculating the output based on information they had about the current ventilation system and the volume of the plant in a complete mix reactor assumption. We will learn the details of this later in the class, but for now we just use the first result in the manager's calculation: a vapor phase concentration of 1 µg/m³. Based on this result, what is the vapor phase concentration in ppm(v)?
At a region in space immediately surrounding a point (xo,Yo,Zo) near the shoreline of a lake, the concentration of
dust particles at time t, is C(x, Yo, Z,, to). The time-averaged air flow velocity is ū = v(y,z)j + w(y,z)k.
Molecular diffusion of tiny dust particles is non-negligible in all directions (diffusion coefficient D), is constant and
uniform. Write an expression for the rate change of the concentration of dust particles aC/at at point (x,,Yo, Zo).
Transcribed Image Text:At a region in space immediately surrounding a point (xo,Yo,Zo) near the shoreline of a lake, the concentration of dust particles at time t, is C(x, Yo, Z,, to). The time-averaged air flow velocity is ū = v(y,z)j + w(y,z)k. Molecular diffusion of tiny dust particles is non-negligible in all directions (diffusion coefficient D), is constant and uniform. Write an expression for the rate change of the concentration of dust particles aC/at at point (x,,Yo, Zo).
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