Basic Principles and Calculations in Chemical Engineering, 9th Edition

Chapter 2Introductory Concepts

2.1 Units of Measure

2.2 Unit Conversions

2.3 Equations and Units

2.4 Measurement Errors and Significant Figures

2.5 Validation of Results

2.6 Mass, Moles, and Density

2.7 Process Variables

Chapter Objectives

• Understand SI and AE units and be able to make unit conversions.

• Apply units correctly when using equations.

• Understand the convention used to designate the accuracy of a number by the manner in which the number is written.

• Learn how to validate a solution.

• Properly use mass, moles, molecular weight, density, pressure, and flow rates to describe chemical engineering systems.

2.1 Units of Measure

An engineer must specify certain quantities in order to design something or to define the proper way to operate ...