Temperature Formula:
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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.
The calculator uses the formula:
Where:
Explanation: The formula relates the temperature to the thermodynamic properties of water during evaporation.
Details: Accurate temperature prediction is crucial for understanding evaporation rates, designing HVAC systems, and studying atmospheric processes.
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.
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.