1. Education
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

What Is the Boiling Point of Water?

Boiling Point of Water

By

The boiling point of water is 100 degrees Celsius or 212 degrees Fahrenheit.

The boiling point of water is 100 degrees Celsius or 212 degrees Fahrenheit at 1 atmosphere of pressure (sea level).

Jody Dole, Getty Images

Question: What Temperature Does Water Boil?

At what temperature does water boil? What determines the boiling point of water? Here's the answer to this common question.

Answer: Short Answer: The boiling point of water is 100°C or 212° F at 1 atmosphere of pressure (sea level).

Better Answer: The boiling point of water depends on the atmospheric pressure, which changes according to elevation. The boiling point of water is 100°C or 212° F at 1 atmosphere of pressure (sea level), but water boils at a lower temperature as you gain altitude (e.g., on a mountain) and boils at a higher temperature if you increase atmospheric pressure (lived below sea level).

The boiling point of water also depends on the purity of the water. Water which contains impurities (such as salted water) boils at a higher temperature than pure water. This phenomenon is called boiling point elevation, which is one of the colligative properties of matter.

Learn More

Freezing Point of Water
Melting Point of Water
Boiling Point of Milk
Boiling Point of Alcohol
Melting Point Versus Freezing Point
How To Supercool Water Yourself

 

©2014 About.com. All rights reserved.