Which is the best interpretation of the two flat portions of the graph?

Question

(1 point)

These show where temperature is 0°C.

These show where thermal energy does not exist.

These show where kinetic energy is increasing.

These show where changes of state are occurring

Answer 1

The best interpretation of the two flat portions of the graph is:

These show where changes of state are occurring.

In a temperature vs. time graph, flat portions typically indicate phase transitions, such as melting or boiling, where temperature remains constant as the substance changes from one state (solid, liquid, gas) to another.