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HELP ME :(

06. oktober 2015 af nadiaChristensen (Slettet) - Niveau: Universitet/Videregående

Questions 1 to 4 refer to the following phase diagram. Answer with A, B, C, D, or E.

[page1image3448]

1. At which point will the substance be solely in the solid phase at equilibrium? 2. Which point represents a boiling point of the substance?
3. At which point will the substance be undergoing sublimation?
4. At which point will the substance be solely in the liquid phase at equilibrium? Questions 5 and 6 refer to the following phase diagram:

[page1image6840]

5. What is the maximum temperature at which this substance will sublime? (a), 100 oC, (b) 230 oC, (c) 115 oC, (d) 95 oC, (e) it cannot sublime

6. What is the normal boiling point of the substance? (a) 95 0C, (b) 100 oC, (c) 50 oC, (d) 180 oC, (e) 150 oC 

Vedhæftet fil: Hex4week41.pdf

Brugbart svar (0)

Svar #1
06. oktober 2015 af 1113 (Slettet)

1. At which point will the substance be solely in the solid phase at equilibrium? 2. Which point represents a boiling point of the substance?

B
3. At which point will the substance be undergoing sublimation?

A
4. At which point will the substance be solely in the liquid phase at equilibrium?

C

6. What is the normal boiling point of the substance? (a) 95 0C, (b) 100 oC, (c) 50 oC, (d) 180 oC, (e) 150 oC 

D 180 grader C


Svar #2
06. oktober 2015 af nadiaChristensen (Slettet)

THANKYYYYYYY 1113


Brugbart svar (1)

Svar #3
07. oktober 2015 af GalVidenskabsmand (Slettet)

1: B

2: D (D ligger på linien mellem væske og gas)

3: A (Sublimation = faseovergang fra fast til gas uden mellemliggende væskefase)

4: C

5: d (Temperaturen ved trippelpunktet)

6: d ('Normal boiling point' = kogepunkt ved 1 atm)


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