1. What is Reactant Conversion for Zero Order Reaction?

Definition: This calculator determines the fraction of reactants converted to products in a zero-order reaction using space time in a plug flow reactor.

Purpose: It helps chemical engineers determine reaction progress and optimize reactor design for zero-order kinetics.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( X_A \) — Reactant conversion (dimensionless, between 0 and 1)
• \( k \) — Rate constant for zero-order reaction (mol/m³·s)
• \( \tau \) — Space time in the reactor (seconds)
• \( C_0 \) — Initial reactant concentration (mol/m³)

Explanation: For zero-order reactions, the conversion depends linearly on the space time and rate constant, and inversely on initial concentration.

3. Importance of Reactant Conversion Calculation

Details: Accurate conversion calculations are crucial for reactor sizing, process optimization, and ensuring desired product yields in chemical processes.

4. Using the Calculator

Tips: Enter the zero-order rate constant, space time, and initial concentration. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is a zero-order reaction?
A: A reaction where the rate is independent of reactant concentration, remaining constant throughout the reaction.

Q2: What is space time in a reactor?
A: The time required to process one reactor volume of feed at entrance conditions (τ = V/v₀).

Q3: Can conversion exceed 1 in this calculation?
A: The calculator caps conversion at 1 (100%) since physically impossible to have >100% conversion.

Q4: How do I determine the rate constant (k)?
A: Typically determined experimentally from reaction rate measurements at different conditions.

Q5: Does this apply to other reactor types?
A: This specific formula applies to plug flow reactors. Other reactor types may require different calculations.