Freezing point

Freezing point of water.

Learn the temperature of the freezing point of water in Fahrenheit, Celsius, and Kelvin. See what factors can change the freezing point.

This example problem demonstrates how to calculate the heat required to change the phase of a substance from solid to liquid using the heat of fusion.

Adding a substance such as sugar or salt to water or ice lowers the freezing point and increases melting of existing ice. This is why salt is spread on icy roads in wintertime.

You sprinkle salt on an icy road or sidewalk. Here's how salt melts ice and how it relates to freezing point depression.

The viral video was shaed around the world and showcases the phenomenon of supercooling which lets water remain liquid below its freezing point.

Freezing Point: The temperature at which a liquid changes to a solid.

The simplicity, scientific utility, and the widespread support of Celsius make it a better choice than Fahrenheit for temperature measurement.

The two most commonly used temperature scales are Celsius and Fahrenheit. The Celsius scale, named after Swedish astronomer Anders Celsius, sets 0C at the freezing point of water and 100C as the boiling point of water at 1 atmosphere of pressure — normal air pressure at sea level. The Fahrenheit scale has 32F as the freezing point of water and 212F as the boiling point. With 180F between freezing and boiling that means each degree Celsius is 1.8 degrees Fahrenheit.

Freezing points of organic solvents/reagents