2)
The heating curve below represents a sample of a substance starting as a solid below its
m...
Chemistry, 26.10.2020 22:00 erichenkell2280
2)
The heating curve below represents a sample of a substance starting as a solid below its
melting point and being heated over a period of time.
F
Temperature (K)
E
B
ั
A
Time (min)
Which statement describes the energy of the particles in this sample during interval DE?
A)
Both potential energy and average kinetic energy increase.
B)
Both potential energy and average kinetic energy decrease.
C)
Potential energy increases and average kinetic energy remains the same.
D)
Potential energy remains the same and average kinetic energy increases
Answers: 3
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