The transient action of a tubular reactor, in which the liquid mixtures react reversibly, in response to the pulse input establishing a set of nonlinear partial differential equations has been analysed. Using collocation with B-spline basis piecewise polynomial approximation, the solution protocols of the system has been formulated in order to estimate parameters, such as transport, kinetic and thermodynamic parameters, from stochastic temperature responses, instead of compositions, in the reactor. The thermal pulse-response technique has proved to be one of the efficient and plausible candidates for the fields of estimations with the exception of the activation energy of the reaction.