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Definition: This calculator determines the change in number of moles in a gas-solid reaction system based on reaction rate, solid volume, and time interval.
Purpose: It helps chemical engineers and researchers quantify the extent of reaction in heterogeneous catalytic systems or gas-solid reactions.
The calculator uses the formula:
Where:
Explanation: The reaction rate multiplied by the solid volume gives the molar rate per second, which when multiplied by time gives total moles changed.
Details: Accurate mole change calculation is crucial for reaction engineering, catalyst design, and process optimization in chemical industries.
Tips: Enter the reaction rate in mol/m³·s, solid volume in m³, and time interval in seconds. All values must be > 0.
Q1: What is a typical reaction rate range?
A: Reaction rates vary widely but often fall between 10-6 to 10-2 mol/m³·s depending on conditions.
Q2: Does this account for catalyst deactivation?
A: No, this assumes constant reaction rate. For deactivating systems, use shorter time intervals.
Q3: Can this be used for liquid-solid systems?
A: Yes, if the reaction rate is properly defined for the liquid phase.
Q4: How to determine solid volume in porous catalysts?
A: Use the bulk volume (including pores) unless intrinsic kinetics are known.
Q5: What if the reaction is reversible?
A: This calculates net mole change. For reversible reactions, consider equilibrium limitations.