Researching the influence of various variables

The form of speed law can be very diverse according to the various variables concentrations, temperature and extent. A number of complementary experiments will bring us information on these forms of law. These complementary experiments are carried out in accordance with certain methodologies. 

Having identified the reactions that occur with their stoichiometric coefficients, it is now important to see whether we can obtain the kinetic properties, which are the extent (or fractional extent) and speed (or reactivity) from experimental quantities (measured speed and extent). For this research it is essential to perform the pseudosteady state test (see section 7.1.5). In fact, this test only enables us to characterize the reaction by a single definition of speed regardless of the component analyzed or the property selected to monitor the evolution of the system. If this test is not satisfied, we should be aware that each property corresponds to a specific extent that is proper to it or to a combination of several extents. 

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