Question
Use the graph and diagram to answer the question. Which is the best interpretation of the two flat portions of the graph? (1 point) Responses These show where temperature is 0ºC. These show where temperature is 0ºC. 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 kinetic energy is increasing.
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GPT-4o mini
The best interpretation of the two flat portions of the graph is: **These show where changes of state are occurring.**
In temperature vs. time graphs, flat portions typically indicate periods where the temperature remains constant, which occurs during phase changes, such as melting or boiling, as the energy added (or removed) is used for changing the state rather than changing the temperature.
In temperature vs. time graphs, flat portions typically indicate periods where the temperature remains constant, which occurs during phase changes, such as melting or boiling, as the energy added (or removed) is used for changing the state rather than changing the temperature.
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