1. What is Henry's Law?

Henry's Law states that the amount of gas that dissolves in a liquid is directly proportional to the partial pressure of that gas above the liquid. It describes the relationship between gas solubility and pressure at constant temperature.

2. How Does the Calculator Work?

The calculator uses Henry's Law equation:

Where:

• \( P \) — Partial Pressure (atm)
• \( H \) — Henry's Constant (atm)
• \( x \) — Mole Fraction (dimensionless)

Explanation: The equation calculates the partial pressure of a gas based on its Henry's constant and mole fraction in solution.

3. Importance of Partial Pressure Calculation

Details: Calculating partial pressure is crucial for understanding gas solubility, designing chemical processes, environmental studies, and medical applications such as blood gas analysis and diving medicine.

4. Using the Calculator

Tips: Enter Henry's constant in atm, mole fraction as a dimensionless value between 0 and 1. Both values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is Henry's constant?
A: Henry's constant is a measure of gas solubility in a specific liquid at a given temperature. It varies with temperature and the gas-liquid combination.

Q2: What are typical units for Henry's constant?
A: Common units include atm, atm·m³/mol, or Pa·m³/mol, depending on the concentration units used.

Q3: How does temperature affect Henry's constant?
A: Henry's constant generally increases with temperature, meaning gas solubility decreases as temperature rises.

Q4: What are some practical applications of Henry's Law?
A: Carbonation of beverages, gas exchange in lungs, environmental monitoring of dissolved gases, and industrial gas separation processes.

Q5: Are there limitations to Henry's Law?
A: Henry's Law applies best to dilute solutions and ideal gas behavior. It may not hold accurately for high pressures, concentrated solutions, or gases that react chemically with the solvent.