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Humidity & Psychrometric Calculations
Inside this lesson
- Define relative humidity as p_w/P_w*(T)
- Define humidity ratio (mass of water vapor per mass of dry air) from gas-phase mole fractions/partial pressures
- Compute relative humidity at a given temperature using Antoine-based saturation pressure
- Avoid confusing relative humidity with humidity ratio (they are different quantities)
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Educational content covering topics typical of a first- and second-year chemical engineering curriculum. Not a substitute for accredited coursework, and not suitable for real process design, plant operation, or safety decisions without review by a licensed professional engineer.