Final answer:
In physics, systems can have a constant temperature despite heat flow, such as during phase transitions. Examples include the melting of ice at 0°C. Chemical reactions like dissolving ammonium nitrate can also maintain a constant temperature.
Explanation:
Yes, it is possible for the temperature of a system to remain constant even when heat flows into or out of it. This can happen during a phase transition like when ice melts, or when a substance is undergoing a chemical reaction that absorbs or releases heat.
For example, when ice melts at 0°C, even though heat is being added to the system, the temperature remains constant until all the ice has turned into water.
In a chemical reaction, like dissolving ammonium nitrate in water, the temperature stays constant as the reaction absorbs heat from the surroundings.
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