1. What is Temperature in Evaporation of Water Calculator?

Definition: This calculator determines the temperature during water evaporation near standard conditions using thermodynamic principles.

Purpose: It helps in understanding the relationship between vapor pressure, latent heat, and temperature during phase changes.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — Temperature (Kelvin)
• \( L \) — Specific latent heat (J/kg)
• \( eS \) — Saturation vapor pressure (Pa)
• \( dedTslope \) — Slope of co-existence curve (Pa/K)
• \( [R] \) — Universal gas constant (8.314 J/mol·K)

Explanation: The formula relates the temperature to the thermodynamic properties of water during evaporation.

3. Importance of Temperature Calculation

Details: Accurate temperature prediction is crucial for understanding evaporation rates, designing HVAC systems, and studying atmospheric processes.

4. Using the Calculator

Tips: Enter the specific latent heat (default 208505.9 J/kg), saturation vapor pressure (default 7.2 Pa), and slope of co-existence curve (default 25 Pa/K). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is specific latent heat of vaporization?
A: It's the energy required to convert 1 kg of liquid into vapor without temperature change.

Q2: How is saturation vapor pressure determined?
A: It's the pressure exerted by vapor in equilibrium with its liquid phase at a given temperature.

Q3: What affects the slope of the co-existence curve?
A: It depends on the substance's thermodynamic properties and the phase transition conditions.

Q4: Why is the universal gas constant used?
A: It relates energy, temperature, and molecular properties in the thermodynamic equations.

Q5: Can this be used for other liquids?
A: The formula is general, but specific values would need adjustment for different substances.