1. What is the Boiling Point of Water at Sea Level?

The boiling point of water at sea level (1 atmosphere pressure) is defined as exactly 100°C (212°F). This is a standard reference point in thermodynamics and everyday cooking measurements.

2. How Does the Calculator Work?

The calculator uses the fixed value:

Where:

• \( T_b \) — Boiling point temperature at sea level

Explanation: At standard atmospheric pressure (1 atm or 101.325 kPa), pure water always boils at exactly 100°C.

3. Importance of Standard Boiling Point

Details: The boiling point of water at sea level serves as a fundamental reference in various scientific fields, culinary applications, and industrial processes. It's used to calibrate thermometers and establish temperature scales.

4. Using the Calculator

Tips: Simply click the "Calculate" button to display the standard boiling point of water at sea level. No input values are needed as this is a fixed physical constant.

5. Frequently Asked Questions (FAQ)

Q1: Why is the boiling point fixed at 100°C at sea level?
A: This is an internationally agreed upon standard based on the properties of pure water at standard atmospheric pressure (1 atm).

Q2: Does altitude affect boiling point?
A: Yes, at higher altitudes where atmospheric pressure is lower, water boils at temperatures below 100°C.

Q3: Does water purity affect boiling point?
A: Yes, impurities and dissolved substances can elevate the boiling point slightly through boiling point elevation.

Q4: Is this value exact?
A: Yes, 100°C is the defined boiling point of pure water at standard atmospheric pressure (101.325 kPa).

Q5: How was this value determined?
A: The Celsius scale was originally defined with 0°C as the freezing point and 100°C as the boiling point of water at standard atmospheric pressure.