Chemical Engineering / Subcategory
Kinetics
Reaction kinetics calculators and formulas for reaction rates, rate laws, and the Arrhenius equation. Explore first-order, second-order, and zero-order reaction rate calculations.
7Formulas
All levels Difficulty
Updated Oct 2026
← All Chemical Engineering (31) Kinetics (7)
Fundamental
Plug Flow Reactor Volume (First-Order Reaction)
V = (F_A0 / k) * ln(1 / (1 - X))
Fundamental
CSTR Residence Time (Space Time)
tau = V / v0
Fundamental
Reaction Yield
Y = F_product / F_A0
Fundamental
Reaction Selectivity
S = F_desired_product / F_undesired_product
Fundamental
Reactor Conversion
X = (F_A0 - F_A) / F_A0
Fundamental
Arrhenius Equation
k = Ae^(−Ea/RT)
Fundamental
Rate Law for a Reaction
r = k[A]ⁿ