// multi-utility computation suite · offline · instant · precise
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sci.semi-batch-reactor Calculator
Calculates concentration and conversion in a semi-batch reactor where one reactant is added continuously while the other is initially charged. Semi-batch operation controls exothermic reaction temperature by throttling feed rate — common in nitration, polymerisation, and Grignard reactions where heat generation must be limited.
Inputs
C Feed Mol L
Amount of solute per unit volume. Higher concentration = more solute dissolved.
V Feed L Min
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
V0 L
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
K Bimolecular
Amount per unit of time or per unit quantity. Check the denominator before interpreting.
T Min
Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
Results
current volume V (L)
Electric charge flow rate (A). Governs wire sizing — too much current causes dangerous heating. Fuses protect circuits from overcurrent.
total moles fed (mol)
The combined total across all inputs and components.
diluted concentration CB (mol/L)
The proportional relationship between two quantities.
approximate moles reacted
Quantity in moles. 1 mol = 6.022 x 10^23 particles. Moles = mass / molar mass.
semi-batch advantage
The value at the specified point or condition.
V(t) = V₀ + v_f·t
Reference formula or conversion factor shown for context.