Multiple Choice
Which temperature scale uses 32 degrees as the freezing point of water?
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1. Intro to General Chemistry
Temperature
Multiple Choice
At which temperature does pure ice melt under standard atmospheric pressure (1 atm)?
A
0 °C
B
100 °C
C
32 °C
D
-10 °C
Verified step by step guidance1
Understand that the melting point of a substance is the temperature at which it changes from solid to liquid at a given pressure.
Recognize that the problem specifies standard atmospheric pressure, which is 1 atm.
Recall that for pure water (H\_2O), the melting point under 1 atm pressure is a well-known physical constant.
Note that the melting point of ice is commonly given as 0 °C, which is equivalent to 32 °F, but the problem asks for the temperature in °C.
Conclude that under standard atmospheric pressure, pure ice melts at 0 °C.
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