At the start of observations, Point A, the substance exists in the _____________state.
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Transcript of At the start of observations, Point A, the substance exists in the _____________state.
![Page 1: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/1.jpg)
At the start of observations, Point A, the substance exists in the _____________state.Solid
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The temperature at this point is ________________.10oC
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As energy is ______________, the temperature of the substance rises at a constant rate for 2 minutes.
added
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At point B, the temperature of the substance is ___________, and the solid begins to ____________. melt
50 oC
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The temperature remains constant until the change from solid to __________ is complete.liquid
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It has taken 3 minutes to add enough energy to melt the solid completely. From Point C to Point D, the substance is in the __________ state.liquid
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Its temperature rises at a constant rate to _________.110oC
10oC
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The temperature remains constant while the liquid changes to a __________. gas
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At Point E, the substance exists as a ____________.gas
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Its temperature rises ________________ as heat is added.
constantly
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When the gaseous substance is allowed to cool, it _____________ energy.
loses
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The cooling curve will be the reverse of the warming curve.
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Energy will be released as the substance changes from a _________ to a __________ and also from a ________ to a ________.
gas liquid
liquidsolid
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The amount of heat released during condensation will be the same as the amount ___________ during vaporization.
gained
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Does the temperature increase during melting?
NO
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Is energy required for each phase change?
YES
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Can both liquid water and steam exist at 100 oC?
YES
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What must be changed, temperature or heat energy, during condensation?
Heat Energy
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How would you describe the change in the arrangement of particles as heat energy and temperature increase?
Become more spread out!!
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What rule can you state about the relationship between phase changes and temperature?
Can’t happen at the same time!
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What rule can you state about the relationship between phase changes and heat energy?
Heat energy is required for phase change!!
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What phase of matter is found on the “Red” part of graph?
A.SolidB.LiquidC.GasD.Solid and LiquidE.Liquid and Gas
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What phase of matter is found on the “Red” part of graph?
A.SolidB.LiquidC.GasD.Solid and LiquidE.Liquid and Gas
![Page 24: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/24.jpg)
What phase of matter is found on the “Red” part of graph?
A.SolidB.LiquidC.GasD.Solid and LiquidE.Liquid and Gas
![Page 25: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/25.jpg)
What phase of matter is found on the “Red” part of graph?
A.SolidB.LiquidC.GasD.Solid and LiquidE.Liquid and Gas
![Page 26: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/26.jpg)
What phase of matter is found on the “Red” part of graph?
A.SolidB.LiquidC.GasD.Solid and LiquidE.Liquid and Gas
![Page 27: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/27.jpg)
What type of change is occurring at the “Red” part of graph?
A. TB. phaseC. Both T and phase D. Neither T and phase
![Page 28: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/28.jpg)
What type of change is occurring at the “Red” part of graph?
A. TB. phaseC. Both T and phase D. Neither T and phase
![Page 29: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/29.jpg)
What type of change is occurring at the “Red” part of graph?
A. TB. phaseC. Both T and phase D. Neither T and phase
![Page 30: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/30.jpg)
What type of change is occurring at the “Red” part of graph?
A. TB. phaseC. Both T and phase D. Neither T and phase
![Page 31: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/31.jpg)
What type of change is occurring at the “Red” part of graph?
A. TB. phaseC. Both T and phase D. Neither T and phase
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What is the Melting Point of this substance?
A. 0 oCB. 25 oCC. 90 oCD. 100 oC25 oC
90 oC
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What is the Boiling Point of this substance?
A. 0 oCB. 25 oCC. 90 oCD. 100 oC25 oC
90 oC
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When you add heat to something, one of two things will happen, but they will never happen at the same time!!!!
1. Substance will change temperature.2. Substance will change phase.
Understand this statement and you will understand Phase Change Diagrams:
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TPhase
Solid Liquid Gas
Melting Pt. Boiling Pt.
Is heat being added or removed???
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Phase
Phase
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Melting Pt.
Boiling Pt.
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T
T
T
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Solid
Liquid
Gas
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Phase
Phase
T
T
T
Solid
Liquid
GasBoiling Pt.
Melting Pt.
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If you take a block of ice at -25 oC and place it on a stove which is turned on high(which is adding heat at a constant rate, what happens????
ARE YOU SURE????
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When you add heat to something, one of two things will happen, but they will
never happen at the same time!!!!
1. Substance will change temperature.2. Substance will change phase.
![Page 43: At the start of observations, Point A, the substance exists in the _____________state.](https://reader033.fdocuments.in/reader033/viewer/2022061400/56812e66550346895d940b3b/html5/thumbnails/43.jpg)
Bookwork:
•P. 163 1-5•P. 170 1-5