The substances are placed in separate containers at room temperature, and each container is gradually cooled. Which of these substances will solidify before the temperature reaches 0 times degree C ?

A substance solidifies when it is cooled to its freezing point. Benzene freezes at about 5.5°C, so it solidifies before the temperature reaches 0°C. Nitrogen and butane freeze far below 0°C, while water freezes at 0°C, not before it.

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