ECE 231 Laboratory Exercise 2
Ohms Law
Laboratory Group (Names) _,
_, _
OBJECTIVES
Verify Ohms Law
Learn to read resistor color codes
Learn to use ohmmeter, voltmeter, and ammeter
Learn to calculate power loss in resistors
BACKGROUND
Resistors are used fo
Learning objectives
Convert units of a quantity into equivalent dimensionally consistent
units
Identify and determine the correct number of significant figures in
values and results of arithmetic operations
Understand the concept of dimensional homogen
Chapter 5: Single-Phase Systems
Learning Objective
For a mixture of liquids with known composition, determine V (or VV ) from a known m ( )
Or vice versa using (a) tabulated density data for the mixture and (b) pure-component
Densities and an assumption
Chapter 7: Energy Balance
Learning Objectives
Calculate the kinetic energy of a body of mass m moving with velocity u of the rate of
Transport of kinetic energy by a stream moving with a mass flow rate and velocity u.
Calculate the gravitational potentia
Chapter 3: Process and Process
Variables
Learning objectives
Calculate the density in g/cm3 or lbm/f3 of a liquid or solid
from knowledge of specific gravity, and vice versa.
Converting chemical compositions in terms of mass or molar
fractions
Determin
Chapter 4: Fundamentals of
Material Balances
Learning Objectives
Understand and explain the following terms: (a) batch, semibatch, continuous,
Transient, and steady-state processes; (b) recycle (and its purpose); (c) purge (and
its purpose); (d) degrees
Chapter 4
Multiple Reactions, Yield, and Selectivity
C2H4 + O2 C2H4O
Desired reaction
ethylene
ethylene oxide
C2H4 + 3O2 2CO2 + 2H2O Undesired reaction
Yield:
Yield is always a fraction and may be expressed as a percentage
Selectivity:
The goal is high se