1. What is Mass of Gas Adsorbed if n=1?

Definition: This calculator determines the mass of gas adsorbed on a solid surface when the adsorption isotherm follows a linear relationship (n=1).

Purpose: It helps in understanding and quantifying gas adsorption processes, important in fields like catalysis, gas purification, and surface chemistry.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( x_{gas} \) — Mass of gas adsorbed (kg)
• \( m \) — Mass of adsorbent (kg)
• \( P \) — Pressure of gas (Pascal)
• \( k \) — Adsorption constant (depends on adsorbent-gas pair and temperature)

Explanation: The mass of gas adsorbed is directly proportional to both the mass of adsorbent and gas pressure, with the adsorption constant as the proportionality factor.

3. Importance of Gas Adsorption Calculation

Details: Accurate adsorption calculations are crucial for designing adsorption systems, predicting catalyst performance, and understanding surface interactions.

4. Using the Calculator

Tips: Enter the mass of adsorbent in kg, gas pressure in Pascals, and the adsorption constant. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What does n=1 mean in adsorption?
A: n=1 indicates a linear adsorption isotherm where the amount adsorbed is directly proportional to gas pressure.

Q2: How do I determine the adsorption constant?
A: The adsorption constant is typically determined experimentally for specific adsorbent-gas pairs at given temperatures.

Q3: What are typical units for the adsorption constant?
A: The units depend on the system but are typically kg/(kg·Pa) for this calculation.

Q4: Does this formula work for all pressure ranges?
A: No, it's only valid for low pressures where the linear relationship holds (Henry's law region).

Q5: What factors affect the adsorption constant?
A: Temperature, nature of adsorbent surface, and gas properties all influence the adsorption constant.