Question

Q: A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next few minutes?

A. Molecules in both the metal and the surrounding air will start moving at lower speeds.
B. Molecules in both the metal and the surrounding air will start moving at higher speeds.
C. The air molecules that are surrounding the metal will slow down, and the molecules in the metal will speed up.
D. The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.

Answer 1

Answer: D, The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.

Step-by-step explanation:

Heat flows from warmer places to colder places. The hotter an object is, the faster the molecules will move. Since the metal place is hotter than the air, its molecules will move faster. The heat will flow from the plate into the air and make the air’s molecules move faster. This will heat up the air. When heat is leaving the plate, it will make it cool down, so the plate’s molecules will move slower.