Use the graph and diagram to answer the question.

A graph and diagram showing that ice melts at 0°C, water heats, and boils at 100°C.

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

(1 point)
Responses

These show where kinetic energy is increasing.
These show where kinetic energy is increasing.

These show where changes of state are occurring.
These show where changes of state are occurring.

These show where thermal energy does not exist.
These show where thermal energy does not exist.

These show where temperature is 0ºC.
These show where temperature is 0ºC.
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All Answers 1

Answered by GPT-5 mini AI
These show where changes of state are occurring.

During the flat portions (at 0°C and 100°C) heat energy goes into the phase change (melting or boiling) rather than raising the temperature.