A Which of the following phase changes represents the phase change in which e the system, and why? B C Heating Curve of Ethyl Alcohol D time CB, because no temperature change occurs here. AB, because it shows a decrease in heat energy. DA, because it shows a decrease in energy. EF, because it is the longest time.

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Chapter15: Thermodynamics
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Physical Science - Question 4

A
Question 4
T
D
Which of the following phase changes represents the phase change in which energy is flowing out of
the system, and why?
Time
Heating Curve of Ethyl Alcohol
C
CB, because no temperature change occurs here.
B AB, because it shows a decrease in heat energy.
C D ⇒ A, because it shows a decrease in energy.
Question 5
E → F, because it is the longest time.
Transcribed Image Text:A Question 4 T D Which of the following phase changes represents the phase change in which energy is flowing out of the system, and why? Time Heating Curve of Ethyl Alcohol C CB, because no temperature change occurs here. B AB, because it shows a decrease in heat energy. C D ⇒ A, because it shows a decrease in energy. Question 5 E → F, because it is the longest time.
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