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RCMultiple Choice

Oxidation-Reduction — Cumulative exam

Question 1 • EDG CHEM ES W/LABS2(P) – Q2_9

Which statement best explains the change that occurs when gas particles move more slowly?

Answer
A
The temperature increases because the average kinetic energy decreases.
B
The temperature increases because the average kinetic energy increases.
C
The temperature decreases because the average kinetic energy decreases.
D
The temperature decreases because the average kinetic energy increases.

Explanation

Temperature measures the average kinetic energy of gas particles. When the particles move more slowly, their average kinetic energy decreases, so the temperature decreases. Therefore, the correct statement is “The temperature decreases because the average kinetic energy decreases.”

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