the table below shows the freezing points of four substances.\nsubstance|freezing point (°c)\nbenzene|5.50\nw…
the table below shows the freezing points of four substances.\nsubstance|freezing point (°c)\nbenzene|5.50\nwater|0.00\nbutane|-138\nnitrogen|-210.\nthe 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°c?\nobenzene\nwater\nbutane\nnitrogen
Answer
Explanation:
Step1: Identify condition for solidifying before 0°C.
A substance solidifies before the temperature reaches $0^\circ C$ if its freezing point is greater than $0^\circ C$.
Step2: Examine freezing points from the table.
The freezing points are: Benzene: $5.50^\circ C$, Water: $0.00^\circ C$, Butane: $-138^\circ C$, Nitrogen: $-210^\circ C$.
Step3: Compare freezing points to $0^\circ C$.
Compare each freezing point to $0^\circ C$: $5.50 > 0$ $0.00 = 0$ $-138 < 0$ $-210 < 0$ Only benzene's freezing point ($5.50^\circ C$) is greater than $0^\circ C$.
Step4: Determine the substance that solidifies before 0°C.
Since benzene's freezing point is $5.50^\circ C$, it will solidify when the temperature cools to this point, which occurs before the temperature reaches $0^\circ C$.
Answer:
benzene