Tuesday, October 23rd AGENDA: 1 – Bell Ringer 2 – Phase Change Diagrams 3 – Exit Ticket...
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Transcript of Tuesday, October 23rd AGENDA: 1 – Bell Ringer 2 – Phase Change Diagrams 3 – Exit Ticket...
Tuesday, October 23rd
AGENDA:1 – Bell Ringer2 – Phase Change
Diagrams3 – Exit TicketAnnouncements2.5 pts of extra
credit for coming for tutoring after school (up to 5 times / week)
Today’s Goal:Students will be able to read a phase change diagram.Homework1. Phase Change
Transitions (p. 6)
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
Objective: Students will be able to read a phase change diagram.
Bell Ringer (p. 13):1. What is the phase change
from liquid to solid? What about liquid to gas?
2. When something is melting, what phase(s) are present?
Have your classroom materials out and packet open to page 3 for a stamp!
Tuesday, October 23rd
AGENDA:1 – Bell Ringer2 – Phase Change
Diagrams3 – Exit TicketAnnouncements2.5 pts of extra
credit for coming for tutoring after school (up to 5 times / week)
Today’s Goal:Students will be able to read a phase change diagram.Homework1. Phase Change
Transitions (p. 6)
Week 6
Weekly Agenda
Monday 10/22 – Quiz 3 ReviewTuesday 10/23 – Phase Change
DiagramsWednesday 10/24 – Metric
SystemThursday 10/25 – Metric
System LabFriday 10/26 – Quiz 5
CHAMPS for October 23rd
C – Conversation – No talking unless directed
H – Help – RAISE HAND for questionsA – Activity – Take notes so you can
understand phase change diagramsM – Materials and Movement –
Pen/Pencil, PaperP – Participation – Write down notes,
correct answersS – Success – Understand phase change
diagrams!
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
Phase Change Notes
Temperature – A measure of how much energy something has.Pressure – How much a surface is being pushed on. Atmospheric Pressure – How much Earth’s atmosphere pushes down on us (set as 1 atm).
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
Solid
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
Gas
Questions (p. 4)
1. Which section represents the solid phase? ________2. What section represents the liquid phase? ________3. What section represents the gas phase? ________
Questions (p. 4)
1. Which section represents the solid phase? A2. What section represents the liquid phase? C3. What section represents the gas phase?
B
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Questions (p. 4)
4. What letter represents the triple point?
In your own words, what is the definition of a triple point?
Questions (p. 4)
4. What letter represents the triple point? dIn your own words, what is the definition of a triple point?
Questions (p. 4)
4. What letter represents the triple point? dIn your own words, what is the definition of a triple point?The Temperature and Pressure where all 3 phases coexist.
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Melting
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Melting
Boiling
Questions (p. 4)
5. What is this substance’s normal melting point, at 1 atmosphere of pressure? _________6. What is this substance’s normal boiling point, at 1 atmosphere of pressure? _________
Questions (p. 4)
5. What is this substance’s normal melting point, at 1 atmosphere of pressure? 60 C6. What is this substance’s normal boiling point, at 1 atmosphere of pressure? 100 C
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Melting
Boiling
Questions (p. 4)
7. Above what temperature is it impossible to liquefy this substance, no matter what the pressure? _____8. At what temperature and pressure do all three phases coexist? ___________________
Questions (p. 4)
7. Above what temperature is it impossible to liquefy this substance, no matter what the pressure? 110 C8. At what temperature and pressure do all three phases coexist? Triple Point; 45 C, 0.5 atm
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Melting
Boiling
Questions (p. 4)
9. At a constant temperature, what would you do to cause this substance to change from the liquid phase to the solid phase?
10 What does sublimation mean?
Questions (p. 4)
9. At a constant temperature, what would you do to cause this substance to change from the liquid phase to the solid phase?
Increase Pressure; pushes molecules together
10 What does sublimation mean?
Solid to gas transition; low Temperature, high Pressure
Phase Change Diagrams (p. 4)
Tuesday 10/23 Classwork: Phase Change Diagrams Part A – Generic Phase Diagram. Answer the questions below in relation to the following generic phase diagram.
LiquidSolid
GasTriple Point
Melting
Boiling
Critical
Point
Phase Change Diagrams (p. 5)
Part B – Phase Diagram for Water.
11. At a pressure of 1 atmosphere, what is the normal freezing point of water? ________
12. What is the normal boiling point of water, at one
atmosphere of water? ________
13. In Albuquerque, they live approximately
5,500 feet above sea level, which means the
normal atmospheric pressure is less than 1
atm. In Albuquerque, will water freeze at a
lower temperature or a higher temperature than
at 1 atmosphere? _________ Will water boil at a
higher or lower temperature, than at 1 atmosphere?
________
Phase Change Diagrams (p. 5)
Part B – Phase Diagram for Water.
11. At a pressure of 1 atmosphere, what is the normal freezing point of water? 0 C
12. What is the normal boiling point of water, at one
atmosphere of water? ________
13. In Albuquerque, they live approximately
5,500 feet above sea level, which means the
normal atmospheric pressure is less than 1
atm. In Albuquerque, will water freeze at a
lower temperature or a higher temperature than
at 1 atmosphere? _________ Will water boil at a
higher or lower temperature, than at 1 atmosphere?
________
Phase Change Diagrams (p. 5)
Part B – Phase Diagram for Water.
11. At a pressure of 1 atmosphere, what is the normal freezing point of water? 0 C
12. What is the normal boiling point of water, at one
atmosphere of water? 100 C
13. In Albuquerque, they live approximately
5,500 feet above sea level, which means the
normal atmospheric pressure is less than 1
atm. In Albuquerque, will water freeze at a
lower temperature or a higher temperature than
at 1 atmosphere? _________ Will water boil at a
higher or lower temperature, than at 1 atmosphere?
________
Phase Change Diagrams (p. 5)
Part B – Phase Diagram for Water.
11. At a pressure of 1 atmosphere, what is the normal freezing point of water? 0 C
12. What is the normal boiling point of water, at one
atmosphere of water? 100 C
13. In Albuquerque, they live approximately
5,500 feet above sea level, which means the
normal atmospheric pressure is less than 1
atm. In Albuquerque, will water freeze at a
lower temperature or a higher temperature than
at 1 atmosphere? Lower Will water boil at a higher or
lower temperature, than at 1 atmosphere? Lower
Phase Change Diagrams (p. 5)
Part C – Phase Diagram for Carbon Dioxide. 14. At 1 atmosphere and room temperature
(25C), would you expect solid carbon
dioxide to melt to the liquid phase, or
sublime to the gas phase? _________
15. Some industrial processes require carbon
dioxide. The carbon dioxide is stored on-
site in large tanks as liquid carbon dioxide.
Assuming we lived at sea level (1 atm),
how could carbon dioxide be liquefied? _
____________________________________________________________________________
____________________________________________________________________________
Cornell Notes: Lab Review
Time
Phase Changes are flat because they
occur at a constant temperature
During a phase change you have a
mix of the two phases.
Kinetic Energy increases when Temperature
increases
Potential Energy increases during phase
changes
Lab
Post-Lab Questions:
1. What does the line look like on your graph when temperature is changing?
2. What does the line look like when temperature is not
changing?
3.What does the first flat region represent? What does the second flat region represent?
Lab
Post-Lab Questions:
1. What does the line look like on your graph when temperature is changing?
Goes up2. What does the line look like when temperature is not
changing?
Flat
3.What does the first flat region represent? What does the second flat region represent?
Melting, Boiling
Lab
4. At times (flat regions of your graph), why does the temperature of a substance remain constant, even
though energy is being added?
5. Label each segment of your graph, write which phase
of matter is for each segment and for phase changes say what type of phase change is occurring (freezing,
boiling, etc.)
6. During which phase were the water molecules the most free to move around? How could you tell? Can you
relate this to kinetic energy?
Lab
4. At times (flat regions of your graph), why does the temperature of a substance remain constant, even
though energy is being added?Phase Change; heat is being used to increase
potential energy by spreading molecules apart
5. Label each segment of your graph, write which phase of matter is for each segment and for phase changes say what type of phase change is occurring (freezing,
boiling, etc.)
6. During which phase were the water molecules the most free to move around? How could you tell? Can you
relate this to kinetic energy?Gas, because they leave the beaker! High movement =
high kinetic energy
Exit Ticket
1. You have an atom with 3 protons and 5 neutrons. Write it in isotope notation.
2. Classify apple juice as an element, compound, homogenous, or heterogeneous mixture and explain why.
3. What do the flat lines on a phase change diagram mean? Is the kinetic or potential energy changing? Explain
Exit Ticket
6. What is the name for the element with the chemical symbol P? a. Phosphorus b. Lead c. Potassium d. Protein
7. What is the atomic number of the element Lithium (Li)? a. 1 b. 3 c. 7 d. 9
8. What is the atomic mass (or atomic weight) of Sulfur (S)? a. 14 b. 16 c. 28 d. 32