객관식
Which of the following is a physical property of ionic compounds in their solid state?
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1. Intro to General Chemistry
Physical Properties
객관식
Which of the following is the melting point of water at standard atmospheric pressure?
A
0~^\(\text{o}\)\(\text{C}\)
B
32~^\(\text{o}\)\(\text{C}\)
C
100~^\(\text{o}\)\(\text{C}\)
D
-273~^\(\text{o}\)\(\text{C}\)
검증된 단계별 안내1
Understand that the melting point of a substance is the temperature at which it changes from solid to liquid at a given pressure, typically standard atmospheric pressure (1 atm).
Recall that water's melting point is a well-known physical property and is commonly used as a reference point in temperature scales.
Recognize that water freezes (solidifies) at 0~^\(\text{o}\)\(\text{C}\) and melts at the same temperature under standard atmospheric pressure.
Note that 32~^\(\text{o}\[\text{C}\) and 100~^\(\text{o}\]\text{C}\) correspond to other important temperatures for water: 32~^\(\text{o}\[\text{F}\) is the freezing point in Fahrenheit, and 100~^\(\text{o}\]\text{C}\) is the boiling point at 1 atm.
Understand that -273~^\(\text{o}\)\(\text{C}\) is absolute zero, the theoretical lowest temperature, unrelated to water's melting point.
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