Boiling Point Formula:
From: | To: |
Definition: This calculator determines the boiling point of water at a given pressure using the Antoine equation.
Purpose: It helps chemists, engineers, and students understand how pressure affects water's boiling temperature.
The calculator uses the formula:
Where:
Explanation: This is a form of the Antoine equation that relates vapor pressure to temperature for water.
Details: Understanding boiling points at different pressures is crucial for distillation processes, high-altitude cooking, and industrial applications.
Tips: Enter the pressure in mmHg (millimeters of mercury). 760 mmHg = 1 atmosphere. The pressure must be > 0.
Q1: Why does boiling point change with pressure?
A: Boiling occurs when vapor pressure equals atmospheric pressure. At lower pressures, less energy is needed to reach this equilibrium.
Q2: What's the boiling point at standard pressure?
A: At 760 mmHg (1 atm), water boils at 100°C (212°F).
Q3: How accurate is this calculation?
A: This provides a good estimate for pure water between 1 mmHg and 760 mmHg.
Q4: What about other units for pressure?
A: Convert your pressure to mmHg first (1 atm = 760 mmHg = 101.325 kPa).
Q5: Does this work for other liquids?
A: No, this equation is specific to water. Other substances have different Antoine equation parameters.