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Dalton's Law for Vapor Phase Composition

Calculates the partial pressure and mole fractions of components in a binary gas mixture based on relative humidity and total system pressure.

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1. Define Input Parameters

2. Engineering Output

Partial Pressure of Water (p_water)
- kPa
Mole Fraction of Water Vapor (y_water)
- dimensionless
Mole Fraction of Dry Air (y_air)
- dimensionless

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Context & Assumptions

Dalton's Law is a fundamental principle used to describe the behavior of ideal gas mixtures in process engineering. It is essential for determining vapor phase compositions, which supports the design of separation processes and mass balance calculations in chemical systems.

Understand the Engineering Principles

Review the step-by-step derivations, typical industrial limits, and scale-up rules.

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