Aσ	Atomic weight of atom σ
α	Component of reaction mixture
cα	Molar concentration of component α
dp	Basis of subspace V
${\text{e}}_{\alpha },{\text{e}}^{\alpha }$	Basis vectors
Eσ	Weight of pseudoatomic element σ
fσ	Basis of subspace W
F	Volumetric flow rate
J	Reaction rate vector
Jα	Molar production rate (per unit volume and unit time) of component α
Jp	Rate of independent reaction p
M	Vector of molar masses
Mα	Molecular weight of component α
Ppα	Stoichiometric coefficient of component α in reaction p; element of stoichiometric matrix
ri	Rate of (dependent) reaction i
rwα	Mass production rate (per unit volume and unit time) of component α
Tσα	Number of atoms σ in component α
t	Time
V	Reactor volume
0	Superscript indicating reactor inlet