At what temperature does water freeze at standard conditions?

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Multiple Choice

At what temperature does water freeze at standard conditions?

Explanation:
The temperature at which water changes from liquid to solid under standard atmospheric pressure is 0 degrees Celsius. At 1 atmosphere, pure water reaches a balance point between the liquid and solid phases right at 0°C, so that is the freezing point. If you lower the temperature below 0°C, water would already be ice; if you raise it above 0°C, ice would melt and water would be liquid. The other temperatures don’t fit because -5°C or -10°C are below the freezing point (water would be solid there), and 25°C is well above it (water would remain liquid).

The temperature at which water changes from liquid to solid under standard atmospheric pressure is 0 degrees Celsius. At 1 atmosphere, pure water reaches a balance point between the liquid and solid phases right at 0°C, so that is the freezing point. If you lower the temperature below 0°C, water would already be ice; if you raise it above 0°C, ice would melt and water would be liquid. The other temperatures don’t fit because -5°C or -10°C are below the freezing point (water would be solid there), and 25°C is well above it (water would remain liquid).

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