Question

During which segments is kinetic energy decreasing?

A) 1, 2, 3
B) 4, 5
C) 1, 3, 5
D) 2, 4

Answer 1

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Step-by-step explanation:

Answer 2

The answer is C

Step-by-step explanation:

According to the cooling curve, segments 1, 3, 5 show a decrease in kinetic energy. During these segments, the temperature decreases and, since temperature is measure of the average kinetic energy of molecules, the average kinetic energy decreases as well.