Our discussion of thermodynamics will burn out during Week #22
Updated February 13, 2022
This is your class landing page, you will want to come here every week to check for any class announcements. Make certain you read everything on this page and understand completely all the directions. You can access past weeks announcements in their respective Quarter pages. Do make sure you all print out two copies of the Weekly Pacing Schedule for Quarter 3, posting one on your bulletin board at home and inserting the other in your binder. Week 21 Summary
This week we continued through Chapter 9 - Matter and Energy, having completed Skill & Practice 9C (Specific Heat) and 9D (Using the Heat Equation). On your own this week, you should have completed the Skill & Practice 9B (Reading a Heating/ Cooling curve) to prepare you for the laboratory (Graphing a Cooling Curve for Stearic Acid) on Thursday.
At home, you should have graphed the data you collected on graph paper using the directives enumerated below. From the curve that follows, you will hopefully notice the cooling curve for stearic acid cannot be described by a single, straight, downward slope - in fact most substances do not have this kind of curve. What you should have witnessed as you cooled the stearic acid from about 80 degrees Celsius is a steep decline to about 55 to 62 degrees (which approximates the "freezing" point of stearic acid). At this freezing point particles begin bonding together in a solid state. Once the majority of the compound becomes solid, you should have noticed once again a steeper decline in temperature. Finally, you will need to create a graph on graph paper to plot all of your data, as follows:
What to expect in Week #22
On Tuesday, we will complete Chapter 9 by finishing the analysis of the lab and completing the Skill & Practice 9E - Heat Transfer.
On Thursday, we will start Chapter 10 - The Atom, which is comprised of the following sections:
Check-off List of Things to Do:
Make sure you do the following before classes for Week #22
Tues, February 15th:
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Week 22 Resources/ Assets
Chapter 9 Skill & Practice print-outs
Chapter 9 Homework
Guided Reading Worksheets for Chapter 9
Chapter 10 Skill & Practice print-outsChapter 10 HomeworkGuided Reading Worksheets for Chapter 10 |