Reaction Rate Formula:
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Definition: This calculator computes the reaction rate of reactant B in a gas-liquid reaction system where reactant A is in excess.
Purpose: It helps chemical engineers design and analyze reactors for gas-liquid reactions with solid catalysts.
The calculator uses the formula:
Where:
Explanation: The formula accounts for both external mass transfer resistance and reaction kinetics.
Details: Accurate reaction rate estimation is crucial for reactor design, process optimization, and scaling up chemical processes.
Tips: Enter all required parameters. Default values are provided for reference. All values must be positive except concentration which can be zero.
Q1: What does "Extreme A" mean in this context?
A: It means reactant A is present in such excess that its concentration doesn't significantly change during the reaction.
Q2: How do I determine the effectiveness factor?
A: The effectiveness factor is typically determined experimentally or through Thiele modulus calculations.
Q3: What units should I use for input values?
A: Use the units specified in the input fields (m/s, m², 1/s, Pa, etc.).
Q4: Can this calculator be used for other reactants?
A: This specific formula is designed for reactant B in systems where A is in excess.
Q5: What if I get a very small reaction rate?
A: Check your input parameters - particularly the rate constant and effectiveness factor which greatly influence the result.