Steady-State Parameter Jump Method

There are two common methods of kinetic analysis based on the kinetics equations derived in Sects. 3.1 and 3.2. The first method is the steady-state parameter-jump method. As illustrated in Fig. 4.197, the rate of loss of mass is recorded while jumping between two temperatures, Tj and T2. At each jump time, t, the rate of loss of mass is extrapolated from each direction to tj, so that one obtains two rates at... 

There are two common methods of kinetic analysis based on the kinetics equations derived in Figs. 2.8 and 2.9. The first method is the steady-state parameter-jump method. As shown in the diagram at the top of Fig. 7.19, the rate of loss of mass is recorded while jumping between two temperatures and T2- At each jump time, t(, the rate of loss of mass is extrapolated from each direction to t/, so that one obtains two rates at the same reaction time, but at different temperatures. Other reaction-forcing variables, such as atmospheric pressure, could similarly be used for the jump. Taking the ratio of two expressions such as Eqs. (4) and (5) in Fig. 7.14, or Eq. (8) in Fig. 2.9, one arrives at Eq. (9) of Fig. 7.19, which gives an easy experimental value for the activation energy, If should vary with the extent of reaction, this would indicate the presence of other factors in the rate expression, written in Fig. 7.16 as g(T,p). 

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