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Interpret Phase-Change (Heating/Cooling) Graphs
Worksheet
Grade Level
Grade 8
8.30 Interpret Phase-Change (Heating/Cooling) Graphs
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🔴 Hard
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A heating curve and a cooling curve are made for the same pure substance at the same pressure. Which comparison should be true?
A
The melting point on heating equals the freezing point on cooling
B
The plateau times must be identical in both directions
C
The slopes must be the same on every segment
D
The starting temperatures must match exactly
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