This quantity can be determined using successive iterations of the isolation method. For reactions like the decomposition of NO2, this quantity equals "one over 't' times the 
This quantity can be determined using successive iterations of the isolation method. For reactions like the decomposition of NO2, this quantity equals "one over 't' times the difference between one over initial concentration and one over final concentration." The relationship between its namesake "constant" and temperature is given by the (*) Arrhenius equation. When it depends on the concentration of only one reactant, the equation for this quantity can be "first-order." Chemical kinetics is the study of this quantity, which is increased by a catalyst. For 10 points, name this quantity, which roughly quantifies how quickly a reaction occurs.
This quantity can be determined using successive iterations of the isolation method.