Chemistry, 19.11.2020 01:10 jessicahanshew99
B. The following is a cooling curve showing the release of heat at a constant rate of 500.0 joules/minute from a
3.00 gram sample of water vapor at 140.0°C. The final temperature of the ice is -20.0°C
2
TO
T
E
M
P
E
R
A
т
3
R
E
ec
4
0
5
10 11
12
13
14
15
16
17
18
19
20
21
22
23 24
TIME (Minutes) Heat removed at a constant rate
7
Questions
1. During which segments is kinetic energy decreasing? L: 3,5
2. During which segments does kinetic energy remain the same? 2.4
3. During which segments is potential energy decreasing? 2,4
4. During which segments does potential energy remain the same? 13,5
5. During which segments is one phase only present? 3
6. During which segments are two phases present? 24
At what time does the liquid phase first appear? 3 minutes
8. At what time does the solid phase first appear? 19 minutes
9. At what time do the particles have the highest average kinetic energy? minute
10. Phase changes that occur with a release of energy are Exothermia
11.
and
are exothermic phase changes.
12. How long does it take to completely freeze the sample at its freezing point?
13. How long does it take to completely condense the sample at its condensation point?
14. During which segment is the substance entirely in the solid state?
15. During which segment is the substance entirely in the liquid state?
16. During which segment is the substance entirely in the gas state?
17. How long is the solid state in equilibrium with the liquid state?
The temperature of the sample at this point is
Kelvin
18. How long is the liquid state in equilibrium with the gas state?
The temperature of the sample at this point is
Kelvin
Answers: 3
Other questions on the subject: Chemistry
Chemistry, 21.06.2019 22:30, larreanathalie3523
The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.
Answers: 2
Chemistry, 22.06.2019 23:00, liv467
Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
Answers: 3
Chemistry, 23.06.2019 02:00, xoxoadara13ox07ck
Now look at the segment of the graph between the two data points marked with black squares. describe how the boiling point and melting point plots behave between these points. be as specific as possible.
Answers: 1
You know the right answer?
B. The following is a cooling curve showing the release of heat at a constant rate of 500.0 joules/m...
Questions in other subjects:
Business, 15.08.2019 07:20
Business, 15.08.2019 07:20
Business, 15.08.2019 07:20
