Elgin
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Amy
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Loreley
Endia
Aiti
Say
Aldo
Padam
Jeffrey
Arielle
Desmond
Terrence
Alan
Jackson
Will
Charles
Abbi
Brendan
Antwain
Jeremy
Mo
Jenna
Jonathan
Dianna
Brittney
Ivanna
Blake
Vanessa
Steven
Keaton
Carman
Maranda
Tania
Rigell
Natalie
Tresi
Abtehal
Arif
Jie
Nga
Purna
Heyam
Mu
Thar
Mahmood
Zainab
Lysa
Su
Asaydel
Tania
Suraj
Michael
Anyela
Susana
Binod
Kamal
Buddhi
Tika
Zaradasht
Ashjan
Dasarath
Phul
Say Ber
Soe S.
Bishnu
Damber
Ricardo
Viridiana
Jen
Niang
Soe R
Than
Water
Bi
Thein
Pleh
Jeeven
Soloman
Michelle
Kointhia
Yosvany
Justin B.
Ravend
Jose A.
Jeremy
Kumari
Ibrahem
TJ
Yirah
Cindy
Khadija
Radha
Tiyeana
CJ
Nick
Cha
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Kat
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Dalya
Maria S
Isaiah
Da’Ja
Quintin
Gerardo
Kash
Shawn
Shatem
Nallely
Andrea
Cachey
Demarcus
Kim
Le’Shona
Autumn
Jonathan
John
Rebaz
Salih
Tuyet
Karli
Josh
RonDariu
s
Laura
Breanna
Tierra
Luis
Justin
Maria D
Noor
Seepan
Pishkush
Unit 6 Day 1 (6.1)
The Kinetic Molecular Theory
Table of Contents
Unit # and Topic
Topic #
(eg. 3.2)
6.1
The Kinetic Molecular Theory
Exit
Ticket %
Mastery
(Y/N)
Learning Objectives
• I can explain pressure, temperature, and
volume
• I can explain the behavior of gases using the
Kinetic Molecular Theory of Gases
http://phet.colorado.edu/en/simulation/gas-properties
Investigation (11 min)
Guided -complete all
Practice problems
-work with
assigned group
-quietly
-raise your hand to
ask a question
• Work with the person beside you (groups of 2)
• Complete Part A (3min)
• Complete Part B—quietly answer questions while
watching particular simulator (5 min)
• Complete Part C (3min)
Instruction
Instruction
-complete all notes
and example
problems
-complete summary
-silently
-raise your hand to
ask or answer a
question
KP1: What is a gas?
• Phase of matter with high kinetic energy
(temperature), high particle spacing, and low
potential energy
– Ex. The air in this room is a gas, which means its
particles are moving fast (high KE, low PE) and are
far apart
KP2: What is the difference between a real
gas and an ideal gas?
• A real gas is a gas that exists in everyday
life (ex. The air we are breathing)
• An ideal gas is what a gas should behave
like under specific conditions
– In this unit we will learn about ideal gases
KP3: What 3 variables do we use to
talk about gases?
• Pressure (P) = the force of the gas particles
colliding with the sides of the container
– Measured in Atmospheres (atm)
• Temperature (T) = average kinetic energy
(movement) of the gas particles
– Measured in Kelvin (K)
• Volume (V) = amount of space the gas
particles take up, equal to the size of their
container
– Measured in Liters (L)
high volume
low volume
KP4: What is the Kinetic Molecular Theory of
Gases?
• A theory of the way ideal gases behave
that lets us predict gas behavior
• According to the KMT:
1. Gas particles have no volume (they are
points). Gas volume = volume of
container
The particles are so small compared to the
space between them that we do not consider
their size. Therefore, it is easy to compress
them or squish them into a small space
(unlike solids or liquids).
Kinetic Molecular Theory (con’t)
2. Gas particles move in random but straight
lines until they hit something—usually each
other or the walls of the container. This causes
them to “diffuse” or spread out (ex. Perfume)
and “effuse” or escape through a hole in the
container (ex. Air escaping a hole in your tire)
Diffusion
Effusion
Particles escape through the hole in the container
3. There is no attraction or repulsion between
gas particles; they bounce off of each other
when they collide
3. Gas pressure is due to the particles colliding
with the walls of the container
 the more collisions, the
higher the pressure
4. The average kinetic energy of a gas is
measured by temperature in Kelvin
Guided practice
Guided -complete all
Practice problems
-work with
assigned group
-quietly
-raise your hand to
ask a question
•Think (30 sec)-Pair (1 min)-Share (1 min) each problem
Independent Practice
Independent -complete all
Practice
problems
-silently and alone
-use your packet for
help
-raise your hand to
ask for help
Did we meet our objectives?
• I can explain pressure, temperature, and
volume…HOW?
• I can explain the behavior of gases using the
Kinetic Molecular Theory…HOW?
Exit Ticket
Exit
Ticket
-complete all
problems
-track your score
-start your
homework
-silently and alone
-no notes!
Grading Exit Tickets
Trade Exit Tickets with the person beside you
No one should have their own Exit Ticket
6.1 Exit Ticket Answers
1. B
2. A
3. C
4. C
5. B
• Give your partner a score out of 5 (check
marks for correct answers, x marks for
incorrect answers
• Fill in their percentage score in the top
right hand corner (0/5 = 0%, 1/5 = 20%,
2/5 = 40%, 3/5 = 60%, 4/5 = 80%, 5/5 =
100%)
• Pass exit tickets to the person at the
front of the row
Place binders on the shelf where
you found them!!!