1. What is Saturated Vapor Pressure?

Saturated vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature. It represents the maximum amount of water vapor the air can hold at a specific temperature.

2. How Does the Calculator Work?

The calculator uses the saturated vapor pressure equation:

Where:

• \( e_s \) — Saturated vapor pressure (hPa)
• \( T \) — Temperature (°C)
• 6.112 — Reference vapor pressure at 0°C (hPa)
• 17.67 and 243.5 — Empirical constants

Explanation: This empirical equation provides an accurate approximation of saturated vapor pressure over liquid water for meteorological applications.

3. Importance of Saturated Vapor Pressure Calculation

Details: Saturated vapor pressure is crucial for calculating humidity parameters, weather forecasting, climate studies, and various engineering applications involving evaporation and condensation processes.

4. Using the Calculator

Tips: Enter temperature in degrees Celsius. The calculator will compute the saturated vapor pressure in hectopascals (hPa).

5. Frequently Asked Questions (FAQ)

Q1: What is the physical significance of saturated vapor pressure?
A: It indicates the maximum water vapor content air can hold before condensation occurs at a given temperature.

Q2: How does temperature affect saturated vapor pressure?
A: Saturated vapor pressure increases exponentially with temperature - warmer air can hold significantly more moisture.

Q3: What are typical values of saturated vapor pressure?
A: At 0°C: ~6.1 hPa, at 20°C: ~23.4 hPa, at 40°C: ~73.8 hPa. Values approximately double for every 10°C temperature increase.

Q4: Are there different equations for ice vs water?
A: Yes, different equations exist for saturation over ice surfaces, which is important for sub-freezing temperatures.

Q5: What applications use saturated vapor pressure calculations?
A: Meteorology, HVAC design, industrial drying processes, agricultural planning, and environmental monitoring.