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Definition: This calculator determines the rate constant for a zero-order reaction in a Plug Flow Reactor (PFR) based on reactant conversion, initial concentration, and space time.
Purpose: It helps chemical engineers and researchers analyze and design plug flow reactor systems for zero-order reactions.
The calculator uses the formula:
Where:
Explanation: The rate constant is calculated by multiplying the conversion by initial concentration and dividing by the space time.
Details: Accurate determination of the rate constant is crucial for reactor design, process optimization, and predicting reaction behavior in industrial applications.
Tips: Enter the reactant conversion (0-1), initial concentration (must be > 0), and space time (must be > 0). The calculator will provide the rate constant in mol/m³·s.
Q1: What is a zero-order reaction?
A: A zero-order reaction is one where the rate is independent of the concentration of the reactant(s).
Q2: What is space time in a PFR?
A: Space time is the time required to process one reactor volume of feed at entrance conditions.
Q3: What are typical units for the rate constant?
A: For zero-order reactions, the rate constant typically has units of mol/m³·s or similar concentration/time units.
Q4: How does conversion affect the rate constant?
A: Higher conversion with the same initial concentration and space time indicates a higher rate constant.
Q5: Can this calculator be used for other reaction orders?
A: No, this is specific to zero-order reactions. Different formulas are needed for first-order or second-order reactions.