Question

The diagram below shows the temperature dropping from 80°C to 20°C.

Two containers each hold 4 balls. One container has balls with long arrows indicating movement and is labeled 80 degrees Celsius. The other has balls with short arrows and is labeled 20 degrees Celsius. An arrow points from the first to the second container.
Molecules that have longer arrows are moving faster. Which statement describes what is happening in this system?
Molecules vibrate more as temperature decreases.
Temperature is not related to the average kinetic energy of a system.
Kinetic energy decreases as temperature decreases.
There is no change in average kinetic energy between these two systems.

Answer 1

C on edge

Step-by-step explanation:

Answer 2

Kinetic energy decreases as temperature decreases.

Step-by-step explanation:

From the description that the system at 80°C has longer arrows, or move faster than the system at 20°C, having shorter actors indicating a slower motion, we can conclude that the kinetic energy of a body depends on its temperature.

If the system at 80°C shows a greater kinetic energy (faster motion of particles) than the system at 20°C, it then implies that decreasing the temperature of the body decreases its kinetic energy.