Vanden Bout/LaBrake/Crawford CH301 GAS PRESSURE/ Day 2 CH302 - - PDF document
Unit1Day2-Crawford Tuesday, September 03, 2013 7:51 AM Vanden Bout/LaBrake/Crawford CH301 GAS PRESSURE/ Day 2 CH302 Vanden Bout/LaBrake Spring 2012 Important Information USE PIAZZA FOR QUESTIONS.. LEARN ABOUT WEBSITE HW1 WAS DUE
CH302 Vanden Bout/LaBrake Spring 2012
CH302 Vanden Bout/LaBrake Spring 2012
Important Information
USE PIAZZA FOR QUESTIONS…….. LEARN ABOUT WEBSITE
HW1 WAS DUE THIS MORNING 9AM LM00 & 01 WERE DUE THIS MORNING 9AM LM2, LM3, LM4, LM5 DUE THURSDAY MORNING 9AM
Unit1Day2-Crawford
Tuesday, September 03, 2013 7:51 AM Unit1Day2-Crawford Page 1
CH302 Vanden Bout/LaBrake Spring 2012
What are we going to learn today?
Model Gas Concept – Gas Pressure Relationship Pressure and Volume
CH302 Vanden Bout/LaBrake Spring 2012
CONCEPT PREASSESS
INDEPENDENT WORK 1 MINUTE PER QUESTION DO YOUR BEST!
In the small particle model of a gas - an atomic gas is treated the same as a molecular gas.
a) TRUE b) FALSE
QUIZ: CLICKER QUESTION 1 (NO TALKING points for CORRECT answer)
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CH302 Vanden Bout/LaBrake Spring 2012
In the small particle model of a gas - an atomic gas is treated the same as a molecular gas.
a) TRUE b) FALSE
CH302 Vanden Bout/LaBrake Spring 2012
Describe a Gas
PHYSICAL DESCRIPTION: VOLUME PRESSURE TEMPERATURE AMOUNT
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CH302 Vanden Bout/LaBrake Spring 2012
Describe a Gas
PHYSICAL DESCRIPTION: VOLUME PRESSURE – most abstract property TEMPERATURE AMOUNT
CH302 Vanden Bout/LaBrake Spring 2012
Consider Pressure
Stand Flat Footed – trace your foot on graph paper Stand on Tippy Toe - trace your foot on graph paper
Consider the flat foot vs the tippy toed foot, which
a) The flat foot exerted more pressure. b) Both exerted the same pressure. c) The tippy toe exerted more pressure.
POLLING: CLICKER QUESTION 2 (points for everyone)
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CH302 Vanden Bout/LaBrake Spring 2012
a) The flat foot exerted more pressure. b) Both exerted the same pressure. c) The tippy toe exerted more pressure. d) Both exerted the same pressure, but the flat foot exerted more force. e) Both exerted the same pressure, but the tippy toed exerted more force.
CH302 Vanden Bout/LaBrake Spring 2012
Could you do a calculation to verify your answer choice?
EXPLAIN YOUR ANSWER CALCULATE AND REPORT ANSWER IN UNITS of psi and atm
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CH302 Vanden Bout/LaBrake Spring 2012 CH302 Vanden Bout/LaBrake Spring 2012
Collapsing Can Demo
CH302 Vanden Bout/LaBrake Spring 2012
The can collapsed because the pressure:
POLLING: CLICKER QUESTION 3
a) inside the can was greater than outside the can b) outside the can was greater than inside the can c) inside the can was the same as the pressure outside the can but the metal contracted when chilled d) It was just a magic trick to impress us
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CH302 Vanden Bout/LaBrake Spring 2012
Do the syringe activity
CH302 Vanden Bout/LaBrake Spring 2012
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CH302 Vanden Bout/LaBrake Spring 2012
Balloon in Vacuum Demo
Turn on vacuum pump
CH302 Vanden Bout/LaBrake Spring 2012
What did we learn today?
Concept of pressure and magnitude of pressure units – more quantitative information in LM Relationship between pressure and volume of a gas – Law of Nature Laws of Nature have predictive power. Start thinking in a microscopic view of what is occurring on a macroscopic scale – thinking like a chemist. Anything Else? Please Share….
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CH302 Vanden Bout/LaBrake Spring 2012
DAY 1 & DAY 2 LEARNING OUTCOMES
Perform stoichiometric calculations using masses, moles, limiting reagents and percent yields Define the terms metacognition, flipped classroom, student centered learning, mindset and be able to relate them to nes learning in this course Explain and apply Boyles, Charles, and Avogadro’s Gas Laws to observations of gas behavior Describe the concept of pressure from a macroscopic and microscopic perspective.
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