Why pure water freezes at hundred degrees Celsius?

Answer 1

Water at 100 degrees Celsius is usually boiling. What has this to do with a freezing environment? Who understands this question?

Answer 2

Pure water freezes at 0 degrees Celsius, not 100 degrees Celsius. At this temperature, water molecules slow down and form a crystalline structure, resulting in the solid state of ice. The 100 degrees Celsius refers to the boiling point of water, where it turns into vapor.

Answer 3

It doesn't. Water boils at 100 degrees because Anders Celsius made this decision for his temperature scale.