First-Order Reaction Rate Calculation
Calculates the temperature-dependent rate constant, residence time required for targeted microbial reduction, and decimal reduction time (D-value) using first-order reaction kinetics and the Arrhenius equation.
📖 Need the theory? Read the methodology, assumptions, and equations in the full reference guide.
1. Define Input Parameters
2. Engineering Output
Absolute Temperature (T_K)
- K
- K
Rate Constant (K_RATE)
- s⁻¹
- s⁻¹
Required Residence Time (TIME_S)
- s
- s
Decimal Reduction Time (D-value) (D_VALUE)
- s
- s
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Download Offline Excel CalculationContext & Assumptions
First-order kinetic models are foundational in food process engineering for predicting microbial destruction and quality loss during thermal treatment. By applying the Arrhenius equation, process engineers can determine temperature dependence and accurately size continuous sterilization systems like aseptic processing units. This ensures target sterility levels are achieved while preserving thermal-sensitive product quality.
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