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 temperature is 0ºC. These show where temperature is 0ºC. These show where thermal energy does not exist. These show where thermal energy does not exist.
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The best interpretation of the two flat portions of the graph is: These show where changes of state are occurring.
In a temperature vs. energy graph, the flat portions typically correspond to phase changes (like melting or boiling), where temperature remains constant while the substance undergoes a change in state.
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