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Module 3: Characteristics of Particles - Surface Area and Volume - Practice Problems

 
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Instructions:
Work these problems on a sheet of paper and check your answers against those provided below.

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Q icon #1
How many 1-micrometer particles lined side-by-side would stretch one inch?

A icon
Answer: 25,400 particles

Solution:
Practice Equation 1

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Q icon #2
Calculate the total surface area (in cm2) and volume (in cm3) of spherical particles that have the following actual diameters.
  1. 1.0 micrometer
  2. 10 micrometers

A icon
Answer: i. Practice Equation 2ia

Solution:
The following equations are used in solving this problem:
Practice Equation 2ib

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Answer: ii. Practice Equation 2iia

Solution:
Practice Equation 2iib
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Surface Area and Volume
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Aerodynamic Diameter

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